| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> |
| <meta http-equiv="X-UA-Compatible" content="IE=9"/> |
| <meta name="generator" content="Doxygen 1.8.4"/> |
| <title>MADlib: dt_preproc.sql_in Source File</title> |
| <link href="tabs.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="jquery.js"></script> |
| <script type="text/javascript" src="dynsections.js"></script> |
| <link href="navtree.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="resize.js"></script> |
| <script type="text/javascript" src="navtree.js"></script> |
| <script type="text/javascript"> |
| $(document).ready(initResizable); |
| $(window).load(resizeHeight); |
| </script> |
| <link href="search/search.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="search/search.js"></script> |
| <script type="text/javascript"> |
| $(document).ready(function() { searchBox.OnSelectItem(0); }); |
| </script> |
| <script type="text/x-mathjax-config"> |
| MathJax.Hub.Config({ |
| extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"], |
| jax: ["input/TeX","output/HTML-CSS"], |
| }); |
| </script><script src="../mathjax/MathJax.js"></script> |
| <link href="doxygen.css" rel="stylesheet" type="text/css" /> |
| </head> |
| <body> |
| <div id="top"><!-- do not remove this div, it is closed by doxygen! --> |
| <div id="titlearea"> |
| <table cellspacing="0" cellpadding="0"> |
| <tbody> |
| <tr style="height: 56px;"> |
| <td style="padding-left: 0.5em;"> |
| <div id="projectname">MADlib |
|  <span id="projectnumber">1.1</span> <span style="font-size:10pt; font-style:italic"><a href="../latest/./dt__preproc_8sql__in_source.html"> A newer version is available</a></span> |
| </div> |
| <div id="projectbrief">User Documentation</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <!-- end header part --> |
| <!-- Generated by Doxygen 1.8.4 --> |
| <script type="text/javascript"> |
| var searchBox = new SearchBox("searchBox", "search",false,'Search'); |
| </script> |
| <div id="navrow1" class="tabs"> |
| <ul class="tablist"> |
| <li><a href="index.html"><span>Main Page</span></a></li> |
| <li><a href="modules.html"><span>Modules</span></a></li> |
| <li class="current"><a href="files.html"><span>Files</span></a></li> |
| <li> |
| <div id="MSearchBox" class="MSearchBoxInactive"> |
| <span class="left"> |
| <img id="MSearchSelect" src="search/mag_sel.png" |
| onmouseover="return searchBox.OnSearchSelectShow()" |
| onmouseout="return searchBox.OnSearchSelectHide()" |
| alt=""/> |
| <input type="text" id="MSearchField" value="Search" accesskey="S" |
| onfocus="searchBox.OnSearchFieldFocus(true)" |
| onblur="searchBox.OnSearchFieldFocus(false)" |
| onkeyup="searchBox.OnSearchFieldChange(event)"/> |
| </span><span class="right"> |
| <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> |
| </span> |
| </div> |
| </li> |
| </ul> |
| </div> |
| <div id="navrow2" class="tabs2"> |
| <ul class="tablist"> |
| <li><a href="files.html"><span>File List</span></a></li> |
| <li><a href="globals.html"><span>File Members</span></a></li> |
| </ul> |
| </div> |
| </div><!-- top --> |
| <div id="side-nav" class="ui-resizable side-nav-resizable"> |
| <div id="nav-tree"> |
| <div id="nav-tree-contents"> |
| <div id="nav-sync" class="sync"></div> |
| </div> |
| </div> |
| <div id="splitbar" style="-moz-user-select:none;" |
| class="ui-resizable-handle"> |
| </div> |
| </div> |
| <script type="text/javascript"> |
| $(document).ready(function(){initNavTree('dt__preproc_8sql__in_source.html','');}); |
| </script> |
| <div id="doc-content"> |
| <!-- window showing the filter options --> |
| <div id="MSearchSelectWindow" |
| onmouseover="return searchBox.OnSearchSelectShow()" |
| onmouseout="return searchBox.OnSearchSelectHide()" |
| onkeydown="return searchBox.OnSearchSelectKey(event)"> |
| <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Groups</a></div> |
| |
| <!-- iframe showing the search results (closed by default) --> |
| <div id="MSearchResultsWindow"> |
| <iframe src="javascript:void(0)" frameborder="0" |
| name="MSearchResults" id="MSearchResults"> |
| </iframe> |
| </div> |
| |
| <div class="header"> |
| <div class="headertitle"> |
| <div class="title">dt_preproc.sql_in</div> </div> |
| </div><!--header--> |
| <div class="contents"> |
| <a href="dt__preproc_8sql__in.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* ----------------------------------------------------------------------- */</span><span class="comment">/** </span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * @file dt_preproc.sql_in</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * @brief Functions used in C4.5 and random forest for data preprocessing.</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * @create April 5, 2012</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * @modified July 19, 2012</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> */</span><span class="comment">/* ----------------------------------------------------------------------- */</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> m4_include(`SQLCommon.m4<span class="stringliteral">')</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="stringliteral"></span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="stringliteral">/* Own macro definitions */</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="stringliteral">m4_ifelse(</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="stringliteral"> m4_eval(</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="stringliteral"> m4_ifdef(`__GREENPLUM__'</span>, 1, 0) &&</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  __DBMS_VERSION_MAJOR__ * 100 + __DBMS_VERSION_MINOR__ < 401</div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  ), 1,</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  `m4_define(`__GREENPLUM_PRE_4_1__<span class="charliteral">')'</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> )</div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> m4_ifelse(</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  m4_eval(</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  m4_ifdef(`__POSTGRESQL__<span class="stringliteral">', 1, 0) &&</span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="stringliteral"> __DBMS_VERSION_MAJOR__ < 9</span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="stringliteral"> ), 1,</span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="stringliteral"> `m4_define(`__POSTGRESQL_PRE_9_0__'</span>)<span class="stringliteral">'</span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="stringliteral">)</span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="stringliteral">m4_ifelse(</span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="stringliteral"> m4_eval(</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="stringliteral"> m4_ifdef(`__GREENPLUM__'</span>, 1, 0) &&</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  __DBMS_VERSION_MAJOR__ * 10000 +</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  __DBMS_VERSION_MINOR__ * 100 +</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  __DBMS_VERSION_PATCH__ >= 40201</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  ), 1,</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  `m4_define(`__GREENPLUM_GE_4_2_1__<span class="charliteral">')'</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> )</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * The file contains the functions to encode a training/classification table for </span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * C4.5 and random forest (RF). Given a training table, we encode it into 4 tables: </span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * + A table that contains the distinct values and their assigned IDs for all</span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * features. We call it the Key-Value(KV) table for features.</span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * + A table that contains the distinct labels and their assigned IDs for the </span></div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * class column. We call it the KV table for class.</span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * + A table that contains metadata descriptions about the columns of the training</span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * table. We call it the metatable.</span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * + A table that contains an encoded version of the training table using the </span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * KV tables. We call it the encoded table.</span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * For a classification table, we only need the first three tables. We will use</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * Golf dataset as an example to illustrate the generated tables:</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * testdb=# select * from golf order by id;</span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * id | outlook | temperature | humidity | windy | class </span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * ----+----------+-------------+----------+--------+--------------</span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * 1 | sunny | 85 | 85 | false | Do not Play</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * 2 | sunny | 80 | 90 | true | Do not Play</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * 3 | overcast | 83 | 78 | false | Play</span></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * 4 | rain | 70 | 96 | false | Play</span></div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * 5 | rain | 68 | 80 | false | Play</span></div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * 6 | rain | 65 | 70 | true | Do not Play</span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * 7 | overcast | 64 | 65 | true | Play</span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * 8 | sunny | 72 | 95 | false | Do not Play</span></div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> * 9 | sunny | 69 | 70 | false | Play</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * 10 | rain | 75 | 80 | false | Play</span></div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * 11 | sunny | 75 | 70 | true | Play</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * 12 | overcast | 72 | 90 | true | Play</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * 13 | overcast | 81 | 75 | false | Play</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> * 14 | rain | 71 | 80 | true | Do not Play</span></div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * (14 rows)</span></div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * The metatable contains the information of the columns in the training table.</span></div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * For each column, it has a record whose structure is defined as:</span></div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * +id The ID assigned to a feature/class/id column. For the class </span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * colum,it's 0. To be determistic, the IDs for feature columns</span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * starts at 1 and are assigned according to the alphabet order </span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> * of the column names. The ID for the id column is the largest</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * feature ID plus one. </span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> * +column_name The name of the class/feature/id column.</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> * +column_type 'c' means the column is a class. </span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * 'f' means it's a feature column.</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * 'i' means it's an id column.</span></div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> * +is_cont 't' means the feature is continuous.</span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * 'f' means it's discrete.</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * +table_oid The OID of the KV table for features/class. </span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * For the id column, there is no KV table.</span></div> |
| <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> * +num_dist_value The number of distinct values for a feature/class column. </span></div> |
| <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * The metatable for the Golf dataset looks like this:</span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * testdb=# select * from golf_meta order by id;</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * id | column_name | column_type | is_cont | table_oid | num_dist_value </span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> * ----+-------------+-------------+---------+-----------+----------------</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * 0 | class | c | f | 787672 | 2</span></div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * 1 | humidity | f | t | 787749 | 9</span></div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> * 2 | outlook | f | f | 787749 | 3</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> * 3 | temperature | f | t | 787749 | 12</span></div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> * 4 | windy | f | f | 787749 | 2</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> * 5 | id | i | f | | </span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * (6 rows)</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> * The KV table for features contains a record for each distinct value. The record</span></div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> * structure is:</span></div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> * +fid The ID assigned to a feature.</span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> * +fval For a discrete feature, it's the distinct value. </span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> * For a continuous feature, it's NULL.</span></div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> * +code For a discrete feature, it's the assigned key. </span></div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> * For a continuous feature, it's the average value.</span></div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * testdb=# select * from golf_kv_features order by fid, code;</span></div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * fid | fval | code </span></div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * -----+----------+------------------</span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * 1 | | 80.2857142857143</span></div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * 2 | overcast | 1</span></div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * 2 | rain | 2</span></div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> * 2 | sunny | 3</span></div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> * 3 | | 73.5714285714286</span></div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> * 4 | false | 1</span></div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> * 4 | true | 2</span></div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * (7 rows)</span></div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> * The KV table for class labels contains a record for each label. The record</span></div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> * structure is the same as the KV table for features.</span></div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> * testdb=# select * from golf_kv_class order by fid, code;</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * fid | fval | code </span></div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * -----+--------------+------</span></div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * 0 | Do not Play | 1</span></div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * 0 | Play | 2</span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * The encoded table has a record for each cell in the training table. The record</span></div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * structure is:</span></div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> * +id The ID from the training table. </span></div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> * +fid The ID assigned to a feature</span></div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> * +fval For a discrete feature, it's the key. </span></div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> * For a continuous feature, it's the original feature value.</span></div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * +is_cont 't' if the feature is continuous, or 'f' for the discrete one.</span></div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * +class The encoded value of the class label.</span></div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * For Golf dataset, the vertical encoded table looks like this:</span></div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * testdb=# select * from golf_ed order by fid, id;</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * id | fid | fval | is_cont | class </span></div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * ----+-----+------+---------+-------</span></div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> * 1 | 1 | 85 | t | 1</span></div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> * 2 | 1 | 90 | t | 1</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> * 3 | 1 | 78 | t | 2</span></div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"> * 4 | 1 | 96 | t | 2</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"> * 5 | 1 | 80 | t | 2</span></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> * 6 | 1 | 70 | t | 1</span></div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> * 7 | 1 | 65 | t | 2</span></div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> * 8 | 1 | 95 | t | 1</span></div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> * 9 | 1 | 70 | t | 2</span></div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> * 10 | 1 | 80 | t | 2</span></div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"> * 11 | 1 | 70 | t | 2</span></div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment"> * 12 | 1 | 90 | t | 2</span></div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> * 13 | 1 | 75 | t | 2</span></div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"> * 14 | 1 | 80 | t | 1</span></div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> * 1 | 2 | 3 | f | 1</span></div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * 2 | 2 | 3 | f | 1</span></div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> * 3 | 2 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * 4 | 2 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> * 5 | 2 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> * 6 | 2 | 2 | f | 1</span></div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> * 7 | 2 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment"> * 8 | 2 | 3 | f | 1</span></div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"> * 9 | 2 | 3 | f | 2</span></div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> * 10 | 2 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * 11 | 2 | 3 | f | 2</span></div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * 12 | 2 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> * 13 | 2 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> * 14 | 2 | 2 | f | 1</span></div> |
| <div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * 1 | 3 | 85 | t | 1</span></div> |
| <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * 2 | 3 | 80 | t | 1</span></div> |
| <div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> * 3 | 3 | 83 | t | 2</span></div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> * 4 | 3 | 70 | t | 2</span></div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> * 5 | 3 | 68 | t | 2</span></div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> * 6 | 3 | 65 | t | 1</span></div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> * 7 | 3 | 64 | t | 2</span></div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> * 8 | 3 | 72 | t | 1</span></div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> * 9 | 3 | 69 | t | 2</span></div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> * 10 | 3 | 75 | t | 2</span></div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> * 11 | 3 | 75 | t | 2</span></div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * 12 | 3 | 72 | t | 2</span></div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * 13 | 3 | 81 | t | 2</span></div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * 14 | 3 | 71 | t | 1</span></div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * 1 | 4 | 1 | f | 1</span></div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> * 2 | 4 | 2 | f | 1</span></div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> * 3 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> * 4 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"> * 5 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> * 6 | 4 | 2 | f | 1</span></div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> * 7 | 4 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> * 8 | 4 | 1 | f | 1</span></div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> * 9 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> * 10 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * 11 | 4 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> * 12 | 4 | 2 | f | 2</span></div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> * 13 | 4 | 1 | f | 2</span></div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * 14 | 4 | 2 | f | 1</span></div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> * (56 rows)</span></div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> * On databases that support compression, we can leverage that feature</span></div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"> * to reduce the space required for keeping the encoded table.</span></div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> * For classification, we will use the metatable and KV tables to encode </span></div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * the table (horizontal table) to be classified into some like this: </span></div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * testdb# select * from golf_ed order by id;</span></div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * id | fvals | class </span></div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * ----+-------------+-------</span></div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> * 1 | {85,3,85,1} | 1</span></div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * 2 | {90,3,80,2} | 1</span></div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> * 3 | {78,1,83,1} | 2</span></div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"> * 4 | {96,2,70,1} | 2</span></div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment"> * 5 | {80,2,68,1} | 2</span></div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment"> * 6 | {70,2,65,2} | 1</span></div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"> * 7 | {65,1,64,2} | 2</span></div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> * 8 | {95,3,72,1} | 1</span></div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment"> * 9 | {70,3,69,1} | 2</span></div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment"> * 10 | {80,2,75,1} | 2</span></div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> * 11 | {70,3,75,2} | 2</span></div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> * 12 | {90,1,72,2} | 2</span></div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> * 13 | {75,1,81,1} | 2</span></div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * 14 | {80,2,71,2} | 1</span></div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * (14 rows)</span></div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * In general, each record in the new encoded table has the following structure:</span></div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> * +id The ID from the classification table.</span></div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> * +fvals An array contains all the features' values for a given ID.</span></div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> * For a discrete feature, the element in the array is the key.</span></div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> * For a continuous feature, it's the original value.</span></div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"> * +class The encoded value of a class label.</span></div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div> |
| <div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div> |
| <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * The UDT for keeping the time for each step of the encoding procedure.</span></div> |
| <div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * pre_proc_time The time of pre-processing.</span></div> |
| <div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * breakup_tbl_time The time of breaking up the training table.</span></div> |
| <div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * gen_kv_time The time of generating KV-table for </span></div> |
| <div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> * features/class. </span></div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> * gen_enc_time The time of generating encoded table.</span></div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> * post_proc_time The time of post-processing.</span></div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span> DROP TYPE IF EXISTS MADLIB_SCHEMA.__enc_tbl_result;</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span> CREATE TYPE MADLIB_SCHEMA.__enc_tbl_result AS </div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span> ( </div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  pre_proc_time INTERVAL,</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  breakup_tbl_time INTERVAL,</div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  gen_kv_time INTERVAL,</div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  gen_enc_time INTERVAL,</div> |
| <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  post_proc_time INTERVAL</div> |
| <div class="line"><a name="l00258"></a><span class="lineno"> 258</span> );</div> |
| <div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div> |
| <div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div> |
| <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> * @brief Check if the input table has unsupported data type or not.</span></div> |
| <div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> * Check if the id column of input table has duplicated value or not.</span></div> |
| <div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * @param full_table_name The full table name.</span></div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> * @param feature_columns The array including all feature names.</span></div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> * @param id_column The name of the ID column. </span></div> |
| <div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"> * @param class_column The name of the class column. </span></div> |
| <div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment"> * @return If the table has unsupported data types, then raise exception</span></div> |
| <div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment"> * otherwise return nothing.</span></div> |
| <div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__validate_input_table </div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  (</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  full_table_name TEXT,</div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  feature_columns TEXT[],</div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  id_column TEXT,</div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  class_column TEXT</div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  )</div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span> RETURNS <span class="keywordtype">void</span> AS $$ </div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span> DECLARE</div> |
| <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  rec RECORD;</div> |
| <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  stmt TEXT;</div> |
| <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  all_columns TEXT := '';</div> |
| <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  index INT;</div> |
| <div class="line"><a name="l00287"></a><span class="lineno"> 287</span> BEGIN</div> |
| <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  -- find the first (LIMIT 1) unsupported data type if the input table has.</div> |
| <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  stmt= 'SELECT atttypid </div> |
| <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  FROM pg_attribute </div> |
| <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  WHERE attrelid ='||quote_literal(full_table_name)||'::regclass AND</div> |
| <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  attnum > 0 AND </div> |
| <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  (not attisdropped) AND</div> |
| <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  atttypid NOT IN </div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  (</div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  SELECT unnest</div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  (</div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  ARRAY[</div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  ''SMALLINT''::regtype::oid,</div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  ''INT''::regtype::oid, </div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  ''BIGINT''::regtype::oid, </div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  ''FLOAT8''::regtype::oid, </div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  ''REAL''::regtype::oid, </div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  ''DECIMAL''::regtype::oid,</div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  ''INET''::regtype::oid, </div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  ''CIDR''::regtype::oid, </div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  ''MACADDR''::regtype::oid, </div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  ''BOOLEAN''::regtype::oid, </div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  ''CHAR''::regtype::oid, </div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  ''VARCHAR''::regtype::oid, </div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  ''TEXT''::regtype::oid, </div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  ''"<span class="keywordtype">char</span>"''::regtype::oid, </div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  ''DATE''::regtype::oid, </div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  ''TIME''::regtype::oid,</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  ''TIMETZ''::regtype::oid, </div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  ''TIMESTAMP''::regtype::oid, </div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  ''TIMESTAMPTZ''::regtype::oid, </div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  ''INTERVAL''::regtype::oid</div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  ]</div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  )</div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  ) ';</div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  IF (feature_columns IS NOT NULL) THEN</div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  -- If user do not specify feature columns, we use all those columns.</div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  -- Otherwise, we just need to check those specified columns.</div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  index = array_lower(feature_columns, 1);</div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  WHILE (index <= array_upper(feature_columns, 1)) LOOP</div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  all_columns = all_columns || </div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  quote_literal(feature_columns[index]) || </div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  ',';</div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  index = index+1;</div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  END LOOP; </div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  </div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  all_columns = all_columns || quote_literal(id_column) || ',';</div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  all_columns = all_columns || quote_literal(class_column);</div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  stmt = stmt ||' AND attname IN ('||all_columns||') ';</div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  END IF;</div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  </div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  stmt = stmt||' LIMIT 1;';</div> |
| <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  </div> |
| <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  EXECUTE stmt INTO rec;</div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  </div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  IF (rec IS NOT NULL) THEN</div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  -- Print the first unsupported data type, and supported types.</div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  RAISE EXCEPTION 'Unsupported data type [%]. Supported types include:</div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  SMALLINT, INT, BIGINT, FLOAT8, REAL,</div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  DECIMAL, INET, CIDR, MACADDR, BOOLEAN,</div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  CHAR, VARCHAR, TEXT, "<span class="keywordtype">char</span>", </div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  DATE, TIME, TIMETZ, TIMESTAMP, TIMESTAMPTZ, and INTERVAL', </div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  rec.atttypid::regtype;</div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  END IF;</div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  SELECT MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  ('SELECT % AS n</div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  FROM % </div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  GROUP BY %</div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  HAVING COUNT(%) > 1</div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  LIMIT 1',</div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  ARRAY[</div> |
| <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  id_column,</div> |
| <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  full_table_name,</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  id_column,</div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  id_column</div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  ]</div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  )</div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  INTO stmt;</div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  </div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  EXECUTE stmt INTO rec;</div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  </div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  -- check if the <span class="keywordtype">id</span> column has duplicated value</div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  PERFORM MADLIB_SCHEMA.__assert</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  (</div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  rec IS NULL,</div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  'The training table ' || full_table_name || ' must not have duplicated <span class="keywordtype">id</span>'</div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  );</div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  </div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  RETURN;</div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span> END</div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span> $$ LANGUAGE PLPGSQL; </div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment"> * @brief Get the class table name by the metatable name.</span></div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="comment"> * @return The name of the class table</span></div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="comment"> */</span> </div> |
| <div class="line"><a name="l00390"></a><span class="lineno"> 390</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_classtable_name</div> |
| <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  (</div> |
| <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  meta_tbl_name TEXT </div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  ) </div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span> RETURNS TEXT AS $$</div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span> DECLARE</div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  classtable_name TEXT;</div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00398"></a><span class="lineno"> 398</span> BEGIN</div> |
| <div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div> |
| <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  PERFORM MADLIB_SCHEMA.__assert_table</div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  (</div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  't'</div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  ); </div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  </div> |
| <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  (</div> |
| <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  'SELECT MADLIB_SCHEMA.__regclass_to_text</div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  (table_oid) as table_name </div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  FROM %</div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  WHERE column_type = ''c''',</div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  ARRAY[</div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  ]</div> |
| <div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  );</div> |
| <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  </div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  EXECUTE curstmt INTO classtable_name;</div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  </div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  RETURN classtable_name;</div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span> END</div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment"> * @brief Drop the metatable and KV tables </span></div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"> * for the features and the class.</span></div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__drop_metatable </div> |
| <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  (</div> |
| <div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  )</div> |
| <div class="line"><a name="l00435"></a><span class="lineno"> 435</span> RETURNS <span class="keywordtype">void</span> AS $$</div> |
| <div class="line"><a name="l00436"></a><span class="lineno"> 436</span> DECLARE</div> |
| <div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  name TEXT;</div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span> BEGIN</div> |
| <div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  IF (meta_tbl_name is NULL ) THEN</div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  RETURN;</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  END IF;</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  </div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  PERFORM MADLIB_SCHEMA.__assert_table(meta_tbl_name, 't');</div> |
| <div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  </div> |
| <div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  -- get the Key-Value tables</div> |
| <div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  (</div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  'SELECT MADLIB_SCHEMA.__regclass_to_text</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  (table_oid) as table_name </div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  FROM </div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  (</div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  SELECT table_oid</div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  FROM %</div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  WHERE table_oid IS NOT NULL</div> |
| <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  GROUP BY table_oid</div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  ) t',</div> |
| <div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  ARRAY[</div> |
| <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  ]</div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  );</div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  </div> |
| <div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  -- drop all the Key-Value tables</div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  FOR name IN EXECUTE curstmt LOOP</div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  EXECUTE 'DROP TABLE IF EXISTS ' || name || ' CASCADE;';</div> |
| <div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  END LOOP;</div> |
| <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  </div> |
| <div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  -- drop the metatable</div> |
| <div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  EXECUTE 'DROP TABLE ' || meta_tbl_name || ' CASCADE;';</div> |
| <div class="line"><a name="l00470"></a><span class="lineno"> 470</span> END</div> |
| <div class="line"><a name="l00471"></a><span class="lineno"> 471</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div> |
| <div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div> |
| <div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="comment"> * @brief Create the metatable.</span></div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="comment"> </span></div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__create_metatable </div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  (</div> |
| <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  )</div> |
| <div class="line"><a name="l00484"></a><span class="lineno"> 484</span> RETURNS <span class="keywordtype">void</span> AS $$</div> |
| <div class="line"><a name="l00485"></a><span class="lineno"> 485</span> DECLARE</div> |
| <div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  result INT := 0;</div> |
| <div class="line"><a name="l00488"></a><span class="lineno"> 488</span> BEGIN</div> |
| <div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  -- the maximum length of an identifier is 63</div> |
| <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  PERFORM MADLIB_SCHEMA.__assert</div> |
| <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  (</div> |
| <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  length(MADLIB_SCHEMA.__strip_schema_name(meta_tbl_name)) <= 63, </div> |
| <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  'The maximum length of ' ||</div> |
| <div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  MADLIB_SCHEMA.__strip_schema_name(meta_tbl_name) || </div> |
| <div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  ' is 63'</div> |
| <div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  );</div> |
| <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  </div> |
| <div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  -- must not be existence</div> |
| <div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  PERFORM MADLIB_SCHEMA.__assert_table(meta_tbl_name, 'f');</div> |
| <div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  </div> |
| <div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  -- 'f' for feature, 'c' for class, 'i' for <span class="keywordtype">id</span></div> |
| <div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  -- 't' for continuous value, 'f' for discrete value</div> |
| <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  (</div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  'CREATE TABLE %(</div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordtype">id</span> INT,</div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  column_name TEXT,</div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  column_type TEXT,</div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  is_cont BOOL,</div> |
| <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  table_oid OID,</div> |
| <div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  num_dist_value INT</div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  ) m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (<span class="keywordtype">id</span>)')',</div> |
| <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  );</div> |
| <div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l00516"></a><span class="lineno"> 516</span> END</div> |
| <div class="line"><a name="l00517"></a><span class="lineno"> 517</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div> |
| <div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div> |
| <div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="comment"> * @brief Insert a record to the metatable</span></div> |
| <div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="comment"> * A row in the metatable represents a column's information.</span></div> |
| <div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"> * @param column_name The name of the column.</span></div> |
| <div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> * @param column_type The type of the column.</span></div> |
| <div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"> * 'i' means id, 'c' means class, 'f' means feature.</span></div> |
| <div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="comment"> * @param is_cont True if the column is continuous.</span></div> |
| <div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="comment"> * @param table_name The full name of key-value table for the column.</span></div> |
| <div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="comment"> * The OID of this table will be stored.</span></div> |
| <div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="comment"> * @param num_dist_value The number of distinct values for the column.</span></div> |
| <div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"> * @note The null value will be included in the distinct values.</span></div> |
| <div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00536"></a><span class="lineno"> 536</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__insert_into_metatable </div> |
| <div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  (</div> |
| <div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  meta_tbl_name TEXT,</div> |
| <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  col_index INT,</div> |
| <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  column_name TEXT,</div> |
| <div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  column_type CHAR, </div> |
| <div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  is_cont BOOLEAN, </div> |
| <div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  table_name TEXT,</div> |
| <div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  num_dist_value INT </div> |
| <div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  )</div> |
| <div class="line"><a name="l00546"></a><span class="lineno"> 546</span> RETURNS <span class="keywordtype">void</span> AS $$</div> |
| <div class="line"><a name="l00547"></a><span class="lineno"> 547</span> DECLARE</div> |
| <div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  curstmt TEXT := '';</div> |
| <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  tbl_txt TEXT := 'NULL'; </div> |
| <div class="line"><a name="l00550"></a><span class="lineno"> 550</span> BEGIN</div> |
| <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  PERFORM MADLIB_SCHEMA.__assert</div> |
| <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  (</div> |
| <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  column_type = 'f' OR column_type = 'i' OR column_type = 'c',</div> |
| <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  'column type must be ''f'', ''i'' or ''c'''</div> |
| <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  );</div> |
| <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  IF (table_name IS NOT NULL) THEN</div> |
| <div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  tbl_txt = '''' || table_name || '''';</div> |
| <div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  END IF;</div> |
| <div class="line"><a name="l00559"></a><span class="lineno"> 559</span> </div> |
| <div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  (</div> |
| <div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  'INSERT INTO % VALUES</div> |
| <div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  (%, ''%'', ''%'', ''%'', %::regclass, %);',</div> |
| <div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  ARRAY[</div> |
| <div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  meta_tbl_name, </div> |
| <div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  col_index::TEXT,</div> |
| <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  column_name, </div> |
| <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  column_type, </div> |
| <div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  MADLIB_SCHEMA.__to_char(is_cont), </div> |
| <div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  tbl_txt,</div> |
| <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  num_dist_value::TEXT</div> |
| <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  ]</div> |
| <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  ); </div> |
| <div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div> |
| <div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l00576"></a><span class="lineno"> 576</span> END</div> |
| <div class="line"><a name="l00577"></a><span class="lineno"> 577</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div> |
| <div class="line"><a name="l00579"></a><span class="lineno"> 579</span> </div> |
| <div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> * @brief Validate if the metatable exists or not.</span></div> |
| <div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="comment"> * Validate if the tables in "table_oid" column exists or not.</span></div> |
| <div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00587"></a><span class="lineno"> 587</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__validate_metatable </div> |
| <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  (</div> |
| <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  )</div> |
| <div class="line"><a name="l00591"></a><span class="lineno"> 591</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l00592"></a><span class="lineno"> 592</span> DECLARE</div> |
| <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  name TEXT;</div> |
| <div class="line"><a name="l00595"></a><span class="lineno"> 595</span> BEGIN</div> |
| <div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  PERFORM MADLIB_SCHEMA.__assert_table(meta_tbl_name, 't');</div> |
| <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  </div> |
| <div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  -- if one of those KV tables doesn't exist, </div> |
| <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  -- we raise exception.</div> |
| <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  (</div> |
| <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  'SELECT MADLIB_SCHEMA.__assert_table</div> |
| <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  (MADLIB_SCHEMA.__regclass_to_text(table_oid), ''t'') </div> |
| <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  FROM </div> |
| <div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  (</div> |
| <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  SELECT table_oid</div> |
| <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  FROM %</div> |
| <div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  WHERE table_oid IS NOT NULL</div> |
| <div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  GROUP BY table_oid</div> |
| <div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  ) t',</div> |
| <div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  ARRAY[</div> |
| <div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  ]</div> |
| <div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  );</div> |
| <div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l00616"></a><span class="lineno"> 616</span> END</div> |
| <div class="line"><a name="l00617"></a><span class="lineno"> 617</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00618"></a><span class="lineno"> 618</span> </div> |
| <div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"> * @brief Get the number of distinct values for the feature with given ID.</span></div> |
| <div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"> * @param feature_id The ID of the feature in the metatable.</span></div> |
| <div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> * @return The number of the distinct values for the given feature.</span></div> |
| <div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00628"></a><span class="lineno"> 628</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__distinct_feature_value </div> |
| <div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  (</div> |
| <div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  meta_tbl_name TEXT,</div> |
| <div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  feature_id INT</div> |
| <div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  )</div> |
| <div class="line"><a name="l00633"></a><span class="lineno"> 633</span> RETURNS INT4 AS $$</div> |
| <div class="line"><a name="l00634"></a><span class="lineno"> 634</span> DECLARE</div> |
| <div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  curstmt TEXT := '';</div> |
| <div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  result INT4 := 0;</div> |
| <div class="line"><a name="l00637"></a><span class="lineno"> 637</span> BEGIN</div> |
| <div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  (</div> |
| <div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  'SELECT num_dist_value </div> |
| <div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  FROM % </div> |
| <div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  WHERE column_type=''f'' AND <span class="keywordtype">id</span> = %',</div> |
| <div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  feature_id::TEXT</div> |
| <div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  ); </div> |
| <div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  </div> |
| <div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  </div> |
| <div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  RETURN result;</div> |
| <div class="line"><a name="l00650"></a><span class="lineno"> 650</span> END</div> |
| <div class="line"><a name="l00651"></a><span class="lineno"> 651</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00652"></a><span class="lineno"> 652</span> </div> |
| <div class="line"><a name="l00653"></a><span class="lineno"> 653</span> </div> |
| <div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="comment"> * @brief Get the number of features.</span></div> |
| <div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="comment"> * @return The number of features in the training table.</span></div> |
| <div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00662"></a><span class="lineno"> 662</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__num_of_feature </div> |
| <div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  (</div> |
| <div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  )</div> |
| <div class="line"><a name="l00666"></a><span class="lineno"> 666</span> RETURNS INT4 AS $$</div> |
| <div class="line"><a name="l00667"></a><span class="lineno"> 667</span> DECLARE</div> |
| <div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  curstmt TEXT := '';</div> |
| <div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  result INT4 := 0;</div> |
| <div class="line"><a name="l00670"></a><span class="lineno"> 670</span> BEGIN</div> |
| <div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  (</div> |
| <div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  'SELECT COUNT(*) </div> |
| <div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  FROM % </div> |
| <div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  WHERE column_type=''f''',</div> |
| <div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  ); </div> |
| <div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  </div> |
| <div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  </div> |
| <div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  RETURN result;</div> |
| <div class="line"><a name="l00682"></a><span class="lineno"> 682</span> END</div> |
| <div class="line"><a name="l00683"></a><span class="lineno"> 683</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div> |
| <div class="line"><a name="l00685"></a><span class="lineno"> 685</span> </div> |
| <div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="comment"> * @brief Get the number of distinct class values.</span></div> |
| <div class="line"><a name="l00688"></a><span class="lineno"> 688</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment"> * @return The number of class labels in the training table.</span></div> |
| <div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00694"></a><span class="lineno"> 694</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__num_of_class</div> |
| <div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  (</div> |
| <div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  )</div> |
| <div class="line"><a name="l00698"></a><span class="lineno"> 698</span> RETURNS INT4 AS $$</div> |
| <div class="line"><a name="l00699"></a><span class="lineno"> 699</span> DECLARE</div> |
| <div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  curstmt TEXT := '';</div> |
| <div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  result INT4 := 0;</div> |
| <div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  class_table_name TEXT := '';</div> |
| <div class="line"><a name="l00703"></a><span class="lineno"> 703</span> BEGIN</div> |
| <div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  (</div> |
| <div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  'SELECT MADLIB_SCHEMA.__regclass_to_text(table_oid) </div> |
| <div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  FROM % </div> |
| <div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  WHERE column_type=''c''',</div> |
| <div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  ); </div> |
| <div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  </div> |
| <div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  EXECUTE curstmt INTO class_table_name;</div> |
| <div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  </div> |
| <div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  (</div> |
| <div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  'SELECT COUNT(code)</div> |
| <div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  FROM %',</div> |
| <div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  class_table_name</div> |
| <div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  );</div> |
| <div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  </div> |
| <div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  </div> |
| <div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  RETURN result;</div> |
| <div class="line"><a name="l00724"></a><span class="lineno"> 724</span> END</div> |
| <div class="line"><a name="l00725"></a><span class="lineno"> 725</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00726"></a><span class="lineno"> 726</span> </div> |
| <div class="line"><a name="l00727"></a><span class="lineno"> 727</span> </div> |
| <div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="comment"> * @brief Get the feature name by the specified feature ID.</span></div> |
| <div class="line"><a name="l00730"></a><span class="lineno"> 730</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00731"></a><span class="lineno"> 731</span> <span class="comment"> * @param feature_index The ID of the feature.</span></div> |
| <div class="line"><a name="l00732"></a><span class="lineno"> 732</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00733"></a><span class="lineno"> 733</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00734"></a><span class="lineno"> 734</span> <span class="comment"> * @return The feature name.</span></div> |
| <div class="line"><a name="l00735"></a><span class="lineno"> 735</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00736"></a><span class="lineno"> 736</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00737"></a><span class="lineno"> 737</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_feature_name </div> |
| <div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  (</div> |
| <div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  feature_index INT,</div> |
| <div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  )</div> |
| <div class="line"><a name="l00742"></a><span class="lineno"> 742</span> RETURNS TEXT AS $$</div> |
| <div class="line"><a name="l00743"></a><span class="lineno"> 743</span> DECLARE</div> |
| <div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00746"></a><span class="lineno"> 746</span> BEGIN</div> |
| <div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  (</div> |
| <div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  'SELECT column_name </div> |
| <div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  FROM % </div> |
| <div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  WHERE <span class="keywordtype">id</span> = % AND column_type = ''f'';',</div> |
| <div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  MADLIB_SCHEMA.__to_char(feature_index)</div> |
| <div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  );</div> |
| <div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  </div> |
| <div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  </div> |
| <div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  RETURN result;</div> |
| <div class="line"><a name="l00759"></a><span class="lineno"> 759</span> END</div> |
| <div class="line"><a name="l00760"></a><span class="lineno"> 760</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00761"></a><span class="lineno"> 761</span> </div> |
| <div class="line"><a name="l00762"></a><span class="lineno"> 762</span> </div> |
| <div class="line"><a name="l00763"></a><span class="lineno"> 763</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="comment"> * @brief Get the column value by the specified column ID and code.</span></div> |
| <div class="line"><a name="l00765"></a><span class="lineno"> 765</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="comment"> * @param column_index The ID of the column.</span></div> |
| <div class="line"><a name="l00767"></a><span class="lineno"> 767</span> <span class="comment"> * @param code The code of the column value.</span></div> |
| <div class="line"><a name="l00768"></a><span class="lineno"> 768</span> <span class="comment"> * @param column_type The type of the column.</span></div> |
| <div class="line"><a name="l00769"></a><span class="lineno"> 769</span> <span class="comment"> * 'i' means id, 'c' means class, 'f' means feature.</span></div> |
| <div class="line"><a name="l00770"></a><span class="lineno"> 770</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l00772"></a><span class="lineno"> 772</span> <span class="comment"> * @return The column's value corresponding to the give code. </span></div> |
| <div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00774"></a><span class="lineno"> 774</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00775"></a><span class="lineno"> 775</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_column_value </div> |
| <div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  (</div> |
| <div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  column_index INT,</div> |
| <div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  code INT,</div> |
| <div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  column_type CHAR,</div> |
| <div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  )</div> |
| <div class="line"><a name="l00782"></a><span class="lineno"> 782</span> RETURNS TEXT AS $$ </div> |
| <div class="line"><a name="l00783"></a><span class="lineno"> 783</span> DECLARE</div> |
| <div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  names TEXT[];</div> |
| <div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  tmp_txt TEXT := ' WHERE column_type = ''c''';</div> |
| <div class="line"><a name="l00788"></a><span class="lineno"> 788</span> BEGIN</div> |
| <div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  PERFORM MADLIB_SCHEMA.__assert</div> |
| <div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  (</div> |
| <div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  code IS NOT NULL, </div> |
| <div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  'the code of the value should not be null'</div> |
| <div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  );</div> |
| <div class="line"><a name="l00794"></a><span class="lineno"> 794</span> </div> |
| <div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  IF (column_type <> 'c') THEN</div> |
| <div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  tmp_txt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  (</div> |
| <div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  ' WHERE <span class="keywordtype">id</span> = % AND column_type = ''%''', </div> |
| <div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  column_index::TEXT, </div> |
| <div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  column_type::TEXT</div> |
| <div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  );</div> |
| <div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  END IF;</div> |
| <div class="line"><a name="l00803"></a><span class="lineno"> 803</span> </div> |
| <div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  (</div> |
| <div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  'SELECT </div> |
| <div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  ARRAY[column_name, </div> |
| <div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  MADLIB_SCHEMA.__regclass_to_text(table_oid)] </div> |
| <div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  FROM % </div> |
| <div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  %',</div> |
| <div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  tmp_txt</div> |
| <div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  ); </div> |
| <div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  </div> |
| <div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  EXECUTE curstmt INTO names;</div> |
| <div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  </div> |
| <div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  PERFORM MADLIB_SCHEMA.__assert(names[1] IS NOT NULL, 'No such column name');</div> |
| <div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  PERFORM MADLIB_SCHEMA.__assert(names[2] IS NOT NULL, 'No such table name');</div> |
| <div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  </div> |
| <div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  (</div> |
| <div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  'SELECT MADLIB_SCHEMA.__to_char(fval) </div> |
| <div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  FROM % </div> |
| <div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  WHERE code = %;',</div> |
| <div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  names[2],</div> |
| <div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  code::TEXT</div> |
| <div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  );</div> |
| <div class="line"><a name="l00828"></a><span class="lineno"> 828</span> </div> |
| <div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  </div> |
| <div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  IF (result IS NULL) THEN</div> |
| <div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  result = 'NULL';</div> |
| <div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  END IF;</div> |
| <div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  </div> |
| <div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  RETURN result;</div> |
| <div class="line"><a name="l00836"></a><span class="lineno"> 836</span> END</div> |
| <div class="line"><a name="l00837"></a><span class="lineno"> 837</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div> |
| <div class="line"><a name="l00839"></a><span class="lineno"> 839</span> </div> |
| <div class="line"><a name="l00840"></a><span class="lineno"> 840</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00841"></a><span class="lineno"> 841</span> <span class="comment"> * @brief Get the feature value by the specified feature ID and code.</span></div> |
| <div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="comment"> * @param feature_index The ID of the feature.</span></div> |
| <div class="line"><a name="l00844"></a><span class="lineno"> 844</span> <span class="comment"> * @param code The code of the feature value.</span></div> |
| <div class="line"><a name="l00845"></a><span class="lineno"> 845</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable. </span></div> |
| <div class="line"><a name="l00846"></a><span class="lineno"> 846</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00847"></a><span class="lineno"> 847</span> <span class="comment"> * @return The value of specified code of the feature </span></div> |
| <div class="line"><a name="l00848"></a><span class="lineno"> 848</span> <span class="comment"> * whose id specified in feature_index.</span></div> |
| <div class="line"><a name="l00849"></a><span class="lineno"> 849</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00850"></a><span class="lineno"> 850</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00851"></a><span class="lineno"> 851</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_feature_value </div> |
| <div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  (</div> |
| <div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  feature_index INT,</div> |
| <div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  code INT,</div> |
| <div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  )</div> |
| <div class="line"><a name="l00857"></a><span class="lineno"> 857</span> RETURNS TEXT AS $$ </div> |
| <div class="line"><a name="l00858"></a><span class="lineno"> 858</span> DECLARE</div> |
| <div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00860"></a><span class="lineno"> 860</span> BEGIN</div> |
| <div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  result = MADLIB_SCHEMA.__get_column_value</div> |
| <div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  (</div> |
| <div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  feature_index, </div> |
| <div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  code, </div> |
| <div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  'f', </div> |
| <div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  );</div> |
| <div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  </div> |
| <div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  RETURN result;</div> |
| <div class="line"><a name="l00870"></a><span class="lineno"> 870</span> END</div> |
| <div class="line"><a name="l00871"></a><span class="lineno"> 871</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00872"></a><span class="lineno"> 872</span> </div> |
| <div class="line"><a name="l00873"></a><span class="lineno"> 873</span> </div> |
| <div class="line"><a name="l00874"></a><span class="lineno"> 874</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00875"></a><span class="lineno"> 875</span> <span class="comment"> * @brief Get the ID column name.</span></div> |
| <div class="line"><a name="l00876"></a><span class="lineno"> 876</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00877"></a><span class="lineno"> 877</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00878"></a><span class="lineno"> 878</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00879"></a><span class="lineno"> 879</span> <span class="comment"> * @return The ID column name.</span></div> |
| <div class="line"><a name="l00880"></a><span class="lineno"> 880</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00881"></a><span class="lineno"> 881</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00882"></a><span class="lineno"> 882</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_id_column_name </div> |
| <div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  (</div> |
| <div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  )</div> |
| <div class="line"><a name="l00886"></a><span class="lineno"> 886</span> RETURNS TEXT AS $$</div> |
| <div class="line"><a name="l00887"></a><span class="lineno"> 887</span> DECLARE</div> |
| <div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00890"></a><span class="lineno"> 890</span> BEGIN</div> |
| <div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  PERFORM MADLIB_SCHEMA.__assert_table</div> |
| <div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  (</div> |
| <div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  't'</div> |
| <div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  );</div> |
| <div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  </div> |
| <div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  (</div> |
| <div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  'SELECT column_name </div> |
| <div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  FROM % </div> |
| <div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  WHERE column_type = ''i'' </div> |
| <div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  LIMIT 1',</div> |
| <div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  );</div> |
| <div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  </div> |
| <div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  </div> |
| <div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  RETURN result;</div> |
| <div class="line"><a name="l00909"></a><span class="lineno"> 909</span> END</div> |
| <div class="line"><a name="l00910"></a><span class="lineno"> 910</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00911"></a><span class="lineno"> 911</span> </div> |
| <div class="line"><a name="l00912"></a><span class="lineno"> 912</span> </div> |
| <div class="line"><a name="l00913"></a><span class="lineno"> 913</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00914"></a><span class="lineno"> 914</span> <span class="comment"> * @brief Get the class column name.</span></div> |
| <div class="line"><a name="l00915"></a><span class="lineno"> 915</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00916"></a><span class="lineno"> 916</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00917"></a><span class="lineno"> 917</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00918"></a><span class="lineno"> 918</span> <span class="comment"> * @return The class column name. </span></div> |
| <div class="line"><a name="l00919"></a><span class="lineno"> 919</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00920"></a><span class="lineno"> 920</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00921"></a><span class="lineno"> 921</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_class_column_name </div> |
| <div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  (</div> |
| <div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  )</div> |
| <div class="line"><a name="l00925"></a><span class="lineno"> 925</span> RETURNS TEXT AS $$</div> |
| <div class="line"><a name="l00926"></a><span class="lineno"> 926</span> DECLARE</div> |
| <div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00929"></a><span class="lineno"> 929</span> BEGIN</div> |
| <div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  PERFORM MADLIB_SCHEMA.__assert_table</div> |
| <div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  (</div> |
| <div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  't'</div> |
| <div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  );</div> |
| <div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  </div> |
| <div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  (</div> |
| <div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  'SELECT column_name </div> |
| <div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  FROM % </div> |
| <div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  WHERE column_type = ''c'' LIMIT 1',</div> |
| <div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  meta_tbl_name</div> |
| <div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  );</div> |
| <div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  </div> |
| <div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  EXECUTE curstmt INTO result;</div> |
| <div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  </div> |
| <div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  RETURN result;</div> |
| <div class="line"><a name="l00947"></a><span class="lineno"> 947</span> END</div> |
| <div class="line"><a name="l00948"></a><span class="lineno"> 948</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l00949"></a><span class="lineno"> 949</span> </div> |
| <div class="line"><a name="l00950"></a><span class="lineno"> 950</span> </div> |
| <div class="line"><a name="l00951"></a><span class="lineno"> 951</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00952"></a><span class="lineno"> 952</span> <span class="comment"> * @brief Get the class value by the specified code.</span></div> |
| <div class="line"><a name="l00953"></a><span class="lineno"> 953</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00954"></a><span class="lineno"> 954</span> <span class="comment"> * @param code The code of the class value.</span></div> |
| <div class="line"><a name="l00955"></a><span class="lineno"> 955</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l00956"></a><span class="lineno"> 956</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00957"></a><span class="lineno"> 957</span> <span class="comment"> * @return The class value corresponding to the code. </span></div> |
| <div class="line"><a name="l00958"></a><span class="lineno"> 958</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00959"></a><span class="lineno"> 959</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00960"></a><span class="lineno"> 960</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__get_class_value </div> |
| <div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  (</div> |
| <div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  code INT,</div> |
| <div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  meta_tbl_name TEXT</div> |
| <div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  )</div> |
| <div class="line"><a name="l00965"></a><span class="lineno"> 965</span> RETURNS TEXT AS $$ </div> |
| <div class="line"><a name="l00966"></a><span class="lineno"> 966</span> DECLARE</div> |
| <div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  result TEXT := '';</div> |
| <div class="line"><a name="l00968"></a><span class="lineno"> 968</span> BEGIN</div> |
| <div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  result = MADLIB_SCHEMA.__get_column_value(0, code, 'c', meta_tbl_name);</div> |
| <div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  </div> |
| <div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  RETURN result;</div> |
| <div class="line"><a name="l00972"></a><span class="lineno"> 972</span> END</div> |
| <div class="line"><a name="l00973"></a><span class="lineno"> 973</span> $$ LANGUAGE PLPGSQL; </div> |
| <div class="line"><a name="l00974"></a><span class="lineno"> 974</span> </div> |
| <div class="line"><a name="l00975"></a><span class="lineno"> 975</span> </div> |
| <div class="line"><a name="l00976"></a><span class="lineno"> 976</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00977"></a><span class="lineno"> 977</span> <span class="comment"> * @brief breakup each record from the training table.</span></div> |
| <div class="line"><a name="l00978"></a><span class="lineno"> 978</span> <span class="comment"> * For example, we have the training table t(id, f1, f2, f3, class), </span></div> |
| <div class="line"><a name="l00979"></a><span class="lineno"> 979</span> <span class="comment"> * then the breakup table is bt(id, fid, fval, is_cont, class). </span></div> |
| <div class="line"><a name="l00980"></a><span class="lineno"> 980</span> <span class="comment"> * The id column of the two tables is the same. Each feature will be</span></div> |
| <div class="line"><a name="l00981"></a><span class="lineno"> 981</span> <span class="comment"> * encoded to continuous numeric number. Assume that t has values</span></div> |
| <div class="line"><a name="l00982"></a><span class="lineno"> 982</span> <span class="comment"> * (1, 'a', 1, 10, '+') </span></div> |
| <div class="line"><a name="l00983"></a><span class="lineno"> 983</span> <span class="comment"> * (2, 'b', 2, 8, '-')</span></div> |
| <div class="line"><a name="l00984"></a><span class="lineno"> 984</span> <span class="comment"> * (3, 'd', null, 2, '+') </span></div> |
| <div class="line"><a name="l00985"></a><span class="lineno"> 985</span> <span class="comment"> * and all of them are discrete features, then the values of bt are </span></div> |
| <div class="line"><a name="l00986"></a><span class="lineno"> 986</span> <span class="comment"> * (1, 1, 'a', 'f', '+') </span></div> |
| <div class="line"><a name="l00987"></a><span class="lineno"> 987</span> <span class="comment"> * (2, 1, 'b', 'f', '-') </span></div> |
| <div class="line"><a name="l00988"></a><span class="lineno"> 988</span> <span class="comment"> * (3, 1, 'd', 'f', '+')</span></div> |
| <div class="line"><a name="l00989"></a><span class="lineno"> 989</span> <span class="comment"> * (1, 2, 1, 'f', '+') </span></div> |
| <div class="line"><a name="l00990"></a><span class="lineno"> 990</span> <span class="comment"> * (2, 2, 2, 'f', '-') </span></div> |
| <div class="line"><a name="l00991"></a><span class="lineno"> 991</span> <span class="comment"> * (3, 2, null, 'f', '+')</span></div> |
| <div class="line"><a name="l00992"></a><span class="lineno"> 992</span> <span class="comment"> * (1, 3, 10, 'f', '+') </span></div> |
| <div class="line"><a name="l00993"></a><span class="lineno"> 993</span> <span class="comment"> * (2, 3, 8, 'f', '-') </span></div> |
| <div class="line"><a name="l00994"></a><span class="lineno"> 994</span> <span class="comment"> * (3, 3, 2, 'f', '+')</span></div> |
| <div class="line"><a name="l00995"></a><span class="lineno"> 995</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00996"></a><span class="lineno"> 996</span> <span class="comment"> * @param input_tbl_name The full name of the input training table.</span></div> |
| <div class="line"><a name="l00997"></a><span class="lineno"> 997</span> <span class="comment"> * @param breakup_tbl_name The name of the breakup table.</span></div> |
| <div class="line"><a name="l00998"></a><span class="lineno"> 998</span> <span class="comment"> * @param kv_cls_name The name of the key-value table for class column.</span></div> |
| <div class="line"><a name="l00999"></a><span class="lineno"> 999</span> <span class="comment"> * @param id_col_name The name of the ID column. </span></div> |
| <div class="line"><a name="l01000"></a><span class="lineno"> 1000</span> <span class="comment"> * @param attr_col_names The array contains all the features' names.</span></div> |
| <div class="line"><a name="l01001"></a><span class="lineno"> 1001</span> <span class="comment"> * @param is_conts The subscript of the array denotes the feature index.</span></div> |
| <div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> <span class="comment"> * Each value of the array denotes the feature is</span></div> |
| <div class="line"><a name="l01003"></a><span class="lineno"> 1003</span> <span class="comment"> * continuous ('t') or discrete ('f')</span></div> |
| <div class="line"><a name="l01004"></a><span class="lineno"> 1004</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode. </span></div> |
| <div class="line"><a name="l01005"></a><span class="lineno"> 1005</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01006"></a><span class="lineno"> 1006</span> <span class="comment"> * @return The name of the breakup table, which will be used to generate the encoded</span></div> |
| <div class="line"><a name="l01007"></a><span class="lineno"> 1007</span> <span class="comment"> * table.</span></div> |
| <div class="line"><a name="l01008"></a><span class="lineno"> 1008</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01009"></a><span class="lineno"> 1009</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01010"></a><span class="lineno"> 1010</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__breakup_table</div> |
| <div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  (</div> |
| <div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  input_tbl_name TEXT, </div> |
| <div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  breakup_tbl_name TEXT,</div> |
| <div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  kv_cls_name TEXT,</div> |
| <div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  id_col_name TEXT,</div> |
| <div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  cls_col_name TEXT,</div> |
| <div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  attr_col_names TEXT[],</div> |
| <div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  is_conts BOOL[],</div> |
| <div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  h2hmv_routine_id INT,</div> |
| <div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  verbosity INT</div> |
| <div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  ) </div> |
| <div class="line"><a name="l01022"></a><span class="lineno"> 1022</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> DECLARE</div> |
| <div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  exec_begin TIMESTAMP;</div> |
| <div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  where_txt TEXT := '';</div> |
| <div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  fval_txt TEXT := 'fval';</div> |
| <div class="line"><a name="l01028"></a><span class="lineno"> 1028</span> BEGIN</div> |
| <div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  </div> |
| <div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  EXECUTE 'DROP TABLE IF EXISTS ' || breakup_tbl_name;</div> |
| <div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> </div> |
| <div class="line"><a name="l01033"></a><span class="lineno"> 1033</span> m4_changequote(`>>>', `<<<')</div> |
| <div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> m4_ifdef(>>>__GREENPLUM_GE_4_2_1__<<<, >>></div> |
| <div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  -- if the DB is GPDB and its <a class="code" href="utilities_8sql__in.html#a9ce7ffa76acc8a0638e9bc48be99f36a" title="Return MADlib build information. ">version</a> is greater than or equal</div> |
| <div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  -- to 4.2, then we will use RLE compression for the encoded table.</div> |
| <div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  (</div> |
| <div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  'CREATE TEMP TABLE %</div> |
| <div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  (</div> |
| <div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <span class="keywordtype">id</span> BIGINT ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  fid INT ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  fval TEXT ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  is_cont BOOL ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  class INT ENCODING (compresstype=RLE_TYPE)</div> |
| <div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  )</div> |
| <div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  WITH(appendonly=true, orientation=column)</div> |
| <div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  DISTRIBUTED BY(<span class="keywordtype">id</span>)',</div> |
| <div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  ARRAY[</div> |
| <div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  breakup_tbl_name</div> |
| <div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  ]</div> |
| <div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  );</div> |
| <div class="line"><a name="l01053"></a><span class="lineno"> 1053</span> <<<, >>></div> |
| <div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  (</div> |
| <div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  'CREATE TEMP TABLE %</div> |
| <div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  (</div> |
| <div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  <span class="keywordtype">id</span> BIGINT,</div> |
| <div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  fid INT,</div> |
| <div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  fval TEXT,</div> |
| <div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  is_cont BOOL,</div> |
| <div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  class INT</div> |
| <div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  )</div> |
| <div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (<span class="keywordtype">id</span>)')',</div> |
| <div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  ARRAY[</div> |
| <div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  breakup_tbl_name</div> |
| <div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  ]</div> |
| <div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  );</div> |
| <div class="line"><a name="l01069"></a><span class="lineno"> 1069</span> <<<)</div> |
| <div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> m4_changequote(>>>`<<<, >>>'<<<)</div> |
| <div class="line"><a name="l01071"></a><span class="lineno"> 1071</span> </div> |
| <div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01073"></a><span class="lineno"> 1073</span> </div> |
| <div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  -- the supported missing value representation (' ', '?' and NULL) will</div> |
| <div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  -- be replace with NULL for easy processing later.</div> |
| <div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  -- the function __to_char is needed because on some databases an explicit</div> |
| <div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  -- cast to text is unavailable.</div> |
| <div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  IF (h2hmv_routine_id = 1) THEN</div> |
| <div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  where_txt = ' WHERE NULLIF(NULLIF(btrim(fval, '' ''), ''?''), '''') IS NOT NULL';</div> |
| <div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  ELSE</div> |
| <div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  fval_txt = ' CASE WHEN NULLIF(NULLIF(btrim(fval, '' ''), ''?''), '''') IS NULL THEN</div> |
| <div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  NULL</div> |
| <div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  ELSE</div> |
| <div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  fval</div> |
| <div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  END ';</div> |
| <div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  END IF;</div> |
| <div class="line"><a name="l01087"></a><span class="lineno"> 1087</span> </div> |
| <div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  IF (cls_col_name IS NULL) THEN</div> |
| <div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  -- if the kv_cls_name is null, then the class column will be null </div> |
| <div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  (</div> |
| <div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  'INSERT INTO %(<span class="keywordtype">id</span>, fid, fval, is_cont, class)</div> |
| <div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  SELECT <span class="keywordtype">id</span>, fid, % as fval, is_cont, class</div> |
| <div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  FROM </div> |
| <div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  (</div> |
| <div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  SELECT %, generate_series(1, %) as fid, </div> |
| <div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  unnest(array[MADLIB_SCHEMA.__to_char(%)]) as fval, </div> |
| <div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  unnest(array[''%''::BOOL]::BOOL[]) as is_cont, NULL as class</div> |
| <div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  FROM</div> |
| <div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  % t1</div> |
| <div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  ) t</div> |
| <div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  %',</div> |
| <div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  ARRAY[</div> |
| <div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  fval_txt,</div> |
| <div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  id_col_name,</div> |
| <div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  array_upper(is_conts, 1)::TEXT,</div> |
| <div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  array_to_string(attr_col_names, '), MADLIB_SCHEMA.__to_char('),</div> |
| <div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  array_to_string(is_conts, ''','''),</div> |
| <div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  where_txt</div> |
| <div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  ]</div> |
| <div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  );</div> |
| <div class="line"><a name="l01114"></a><span class="lineno"> 1114</span> </div> |
| <div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>  ELSE</div> |
| <div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  -- for scoring, as the class column may have some values which are not </div> |
| <div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  -- appear in the training table, we need use left join here to ensure all</div> |
| <div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  -- the rows of the input table were breakup. Here, we simple encode those </div> |
| <div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  -- values to 0. Therefore, during scoring, the samples with 0 (encoded</div> |
| <div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  -- value) as class label will be recognized as mis-classified.</div> |
| <div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  (</div> |
| <div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  'INSERT INTO %(<span class="keywordtype">id</span>, fid, fval, is_cont, class)</div> |
| <div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  SELECT <span class="keywordtype">id</span>, fid, % as fval, is_cont, class</div> |
| <div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  FROM </div> |
| <div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  (</div> |
| <div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  SELECT %, generate_series(1, %) as fid, </div> |
| <div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  unnest(array[MADLIB_SCHEMA.__to_char(%)]) as fval, </div> |
| <div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  unnest(array[''%''::BOOL]::BOOL[]) as is_cont,</div> |
| <div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  coalesce(code, 0::INT) as class</div> |
| <div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  FROM</div> |
| <div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  % t1 LEFT JOIN % t2</div> |
| <div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  ON MADLIB_SCHEMA.__to_char(t1.%) = t2.fval </div> |
| <div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  ) t</div> |
| <div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  %',</div> |
| <div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  ARRAY[</div> |
| <div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  fval_txt,</div> |
| <div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  id_col_name,</div> |
| <div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  array_upper(is_conts, 1)::TEXT,</div> |
| <div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  array_to_string(attr_col_names, '), MADLIB_SCHEMA.__to_char('),</div> |
| <div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>  array_to_string(is_conts, ''','''),</div> |
| <div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  kv_cls_name, </div> |
| <div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  cls_col_name,</div> |
| <div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  where_txt</div> |
| <div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  ]</div> |
| <div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  );</div> |
| <div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  END IF;</div> |
| <div class="line"><a name="l01150"></a><span class="lineno"> 1150</span> </div> |
| <div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01152"></a><span class="lineno"> 1152</span> </div> |
| <div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  RAISE INFO 'time of breaking up the training table:%', </div> |
| <div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  END IF;</div> |
| <div class="line"><a name="l01158"></a><span class="lineno"> 1158</span> END</div> |
| <div class="line"><a name="l01159"></a><span class="lineno"> 1159</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l01160"></a><span class="lineno"> 1160</span> </div> |
| <div class="line"><a name="l01161"></a><span class="lineno"> 1161</span> </div> |
| <div class="line"><a name="l01162"></a><span class="lineno"> 1162</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l01163"></a><span class="lineno"> 1163</span> <span class="comment"> * @brief Generate the vertical encoded table from the breakup table.</span></div> |
| <div class="line"><a name="l01164"></a><span class="lineno"> 1164</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01165"></a><span class="lineno"> 1165</span> <span class="comment"> * @param breakup_tbl_name The full name of the breakup table.</span></div> |
| <div class="line"><a name="l01166"></a><span class="lineno"> 1166</span> <span class="comment"> * @param enc_tbl_name The name of the encoded table. its schema is:</span></div> |
| <div class="line"><a name="l01167"></a><span class="lineno"> 1167</span> <span class="comment"> * id BIGINT, </span></div> |
| <div class="line"><a name="l01168"></a><span class="lineno"> 1168</span> <span class="comment"> * fid INT, </span></div> |
| <div class="line"><a name="l01169"></a><span class="lineno"> 1169</span> <span class="comment"> * fval FLOAT8, </span></div> |
| <div class="line"><a name="l01170"></a><span class="lineno"> 1170</span> <span class="comment"> * is_cont BOOL, </span></div> |
| <div class="line"><a name="l01171"></a><span class="lineno"> 1171</span> <span class="comment"> * class INT</span></div> |
| <div class="line"><a name="l01172"></a><span class="lineno"> 1172</span> <span class="comment"> * @param kv_attr_name The name of the key-value table contains the encoded</span></div> |
| <div class="line"><a name="l01173"></a><span class="lineno"> 1173</span> <span class="comment"> * result for all the features. For continuous feature,</span></div> |
| <div class="line"><a name="l01174"></a><span class="lineno"> 1174</span> <span class="comment"> * it kept the average value of it if in 'explicit' mode;</span></div> |
| <div class="line"><a name="l01175"></a><span class="lineno"> 1175</span> <span class="comment"> * nothing will kept if in 'ignore' mode.</span></div> |
| <div class="line"><a name="l01176"></a><span class="lineno"> 1176</span> <span class="comment"> * @param is_tbl_tmp If ture we will create the encoded table as a temp one.</span></div> |
| <div class="line"><a name="l01177"></a><span class="lineno"> 1177</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode. </span></div> |
| <div class="line"><a name="l01178"></a><span class="lineno"> 1178</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01180"></a><span class="lineno"> 1180</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__gen_vertical_encoded_table</div> |
| <div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  (</div> |
| <div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  breakup_tbl_name TEXT, </div> |
| <div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  enc_tbl_name TEXT,</div> |
| <div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  kv_attr_name TEXT,</div> |
| <div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  is_tbl_tmp BOOL,</div> |
| <div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  verbosity INT</div> |
| <div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  ) </div> |
| <div class="line"><a name="l01188"></a><span class="lineno"> 1188</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01189"></a><span class="lineno"> 1189</span> DECLARE</div> |
| <div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  exec_begin TIMESTAMP;</div> |
| <div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  tmp_txt TEXT = '';</div> |
| <div class="line"><a name="l01193"></a><span class="lineno"> 1193</span> BEGIN</div> |
| <div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  IF (is_tbl_tmp) THEN</div> |
| <div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  tmp_txt = ' TEMP ';</div> |
| <div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  END IF;</div> |
| <div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  </div> |
| <div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  EXECUTE 'DROP TABLE IF EXISTS ' || enc_tbl_name;</div> |
| <div class="line"><a name="l01199"></a><span class="lineno"> 1199</span> </div> |
| <div class="line"><a name="l01200"></a><span class="lineno"> 1200</span> m4_changequote(`>>>', `<<<')</div> |
| <div class="line"><a name="l01201"></a><span class="lineno"> 1201</span> m4_ifdef(>>>__GREENPLUM_GE_4_2_1__<<<, >>></div> |
| <div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  (</div> |
| <div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  'CREATE % TABLE %</div> |
| <div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  (</div> |
| <div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>  <span class="keywordtype">id</span> BIGINT ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  fid INT ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  fval FLOAT8 ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  is_cont BOOL ENCODING (compresstype=RLE_TYPE),</div> |
| <div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  class INT ENCODING (compresstype=RLE_TYPE)</div> |
| <div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  )</div> |
| <div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  WITH(appendonly=true, orientation=column)</div> |
| <div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  DISTRIBUTED BY(<span class="keywordtype">id</span>)',</div> |
| <div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  ARRAY[</div> |
| <div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  tmp_txt,</div> |
| <div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  enc_tbl_name</div> |
| <div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  ]</div> |
| <div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  );</div> |
| <div class="line"><a name="l01219"></a><span class="lineno"> 1219</span> <<<, >>></div> |
| <div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  (</div> |
| <div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>  'CREATE % TABLE %</div> |
| <div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  (</div> |
| <div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordtype">id</span> BIGINT,</div> |
| <div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>  fid INT,</div> |
| <div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>  fval FLOAT8,</div> |
| <div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>  is_cont BOOL,</div> |
| <div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>  class INT</div> |
| <div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  )</div> |
| <div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (<span class="keywordtype">id</span>)')',</div> |
| <div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  ARRAY[</div> |
| <div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  tmp_txt,</div> |
| <div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  enc_tbl_name</div> |
| <div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  ]</div> |
| <div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  );</div> |
| <div class="line"><a name="l01236"></a><span class="lineno"> 1236</span> <<<)</div> |
| <div class="line"><a name="l01237"></a><span class="lineno"> 1237</span> m4_changequote(>>>`<<<, >>>'<<<)</div> |
| <div class="line"><a name="l01238"></a><span class="lineno"> 1238</span> </div> |
| <div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>  END IF;</div> |
| <div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01243"></a><span class="lineno"> 1243</span> </div> |
| <div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  -- Generating the encoded table through join the breakup table with</div> |
| <div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  -- the KV table for all the features</div> |
| <div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  (</div> |
| <div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  'INSERT INTO %(<span class="keywordtype">id</span>, fid, fval, is_cont, class)</div> |
| <div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  SELECT p.<span class="keywordtype">id</span> AS <span class="keywordtype">id</span>, p.fid AS fid,</div> |
| <div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  CASE WHEN (p.is_cont AND p.fval IS NOT NULL) THEN</div> |
| <div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>  p.fval::FLOAT8</div> |
| <div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>  ELSE </div> |
| <div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>  m.code::FLOAT8 </div> |
| <div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  END AS fval,</div> |
| <div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>  p.is_cont AS is_cont,</div> |
| <div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  p.class::INT AS class</div> |
| <div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>  FROM</div> |
| <div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>  % p LEFT JOIN % m</div> |
| <div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>  ON</div> |
| <div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  m.fid = p.fid AND</div> |
| <div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  (coalesce(m.fval, '''') = (coalesce(p.fval, '''')))',</div> |
| <div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  ARRAY[ </div> |
| <div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  enc_tbl_name,</div> |
| <div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>  kv_attr_name</div> |
| <div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>  ]</div> |
| <div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  );</div> |
| <div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>  </div> |
| <div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  END IF;</div> |
| <div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01273"></a><span class="lineno"> 1273</span> END</div> |
| <div class="line"><a name="l01274"></a><span class="lineno"> 1274</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l01275"></a><span class="lineno"> 1275</span> </div> |
| <div class="line"><a name="l01276"></a><span class="lineno"> 1276</span> </div> |
| <div class="line"><a name="l01277"></a><span class="lineno"> 1277</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l01278"></a><span class="lineno"> 1278</span> <span class="comment"> * @brief Generate the horizontal table from a given vertical table.</span></div> |
| <div class="line"><a name="l01279"></a><span class="lineno"> 1279</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01280"></a><span class="lineno"> 1280</span> <span class="comment"> * @param hor_tbl_name The full name of the horizontal table.</span></div> |
| <div class="line"><a name="l01281"></a><span class="lineno"> 1281</span> <span class="comment"> * @param ver_tbl_name The full name of the vertical table.</span></div> |
| <div class="line"><a name="l01282"></a><span class="lineno"> 1282</span> <span class="comment"> * @param meta_tbl_name The full name of the meta data table.</span></div> |
| <div class="line"><a name="l01283"></a><span class="lineno"> 1283</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode. </span></div> |
| <div class="line"><a name="l01284"></a><span class="lineno"> 1284</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01285"></a><span class="lineno"> 1285</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01286"></a><span class="lineno"> 1286</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__gen_horizontal_encoded_table</div> |
| <div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  (</div> |
| <div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  hor_tbl_name TEXT,</div> |
| <div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  ver_tbl_name TEXT,</div> |
| <div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  attr_count INT,</div> |
| <div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  verbosity INT</div> |
| <div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>  ) </div> |
| <div class="line"><a name="l01293"></a><span class="lineno"> 1293</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01294"></a><span class="lineno"> 1294</span> DECLARE</div> |
| <div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  exec_begin TIMESTAMP;</div> |
| <div class="line"><a name="l01297"></a><span class="lineno"> 1297</span> BEGIN</div> |
| <div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01299"></a><span class="lineno"> 1299</span> </div> |
| <div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>  EXECUTE 'DROP TABLE IF EXISTS ' || hor_tbl_name;</div> |
| <div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>  (</div> |
| <div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>  'CREATE TEMP TABLE %(<span class="keywordtype">id</span>, fvals, class) AS</div> |
| <div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>  SELECT</div> |
| <div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>  <span class="keywordtype">id</span>,</div> |
| <div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>  MADLIB_SCHEMA.__array_indexed_agg(fval, %, fid) as fvals,</div> |
| <div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>  min(class)::INT as class</div> |
| <div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>  FROM %</div> |
| <div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  GROUP BY <span class="keywordtype">id</span></div> |
| <div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>  m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (<span class="keywordtype">id</span>)')',</div> |
| <div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  ARRAY[</div> |
| <div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  hor_tbl_name,</div> |
| <div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  attr_count::TEXT,</div> |
| <div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  ver_tbl_name</div> |
| <div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  ]</div> |
| <div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>  );</div> |
| <div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01318"></a><span class="lineno"> 1318</span> </div> |
| <div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  RAISE INFO 'time of generating horizontal table from vertical table:%', </div> |
| <div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  END IF;</div> |
| <div class="line"><a name="l01323"></a><span class="lineno"> 1323</span> END</div> |
| <div class="line"><a name="l01324"></a><span class="lineno"> 1324</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l01325"></a><span class="lineno"> 1325</span> </div> |
| <div class="line"><a name="l01326"></a><span class="lineno"> 1326</span> </div> |
| <div class="line"><a name="l01327"></a><span class="lineno"> 1327</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l01328"></a><span class="lineno"> 1328</span> <span class="comment"> * @brief Encode the continuous and discrete features and the class column.</span></div> |
| <div class="line"><a name="l01329"></a><span class="lineno"> 1329</span> <span class="comment"> * In 'ignore' mode, for each discrete feature/class, we will use </span></div> |
| <div class="line"><a name="l01330"></a><span class="lineno"> 1330</span> <span class="comment"> * continuous integer to encode each distinct value (null value </span></div> |
| <div class="line"><a name="l01331"></a><span class="lineno"> 1331</span> <span class="comment"> * will be excluded). Continuous feature will not be processed. </span></div> |
| <div class="line"><a name="l01332"></a><span class="lineno"> 1332</span> <span class="comment"> * In 'explicit' mode, null value will be included for discrete </span></div> |
| <div class="line"><a name="l01333"></a><span class="lineno"> 1333</span> <span class="comment"> * feature. For continuous feature, null value will be replaced by</span></div> |
| <div class="line"><a name="l01334"></a><span class="lineno"> 1334</span> <span class="comment"> * the average value of this feature.</span></div> |
| <div class="line"><a name="l01335"></a><span class="lineno"> 1335</span> <span class="comment"> * </span></div> |
| <div class="line"><a name="l01336"></a><span class="lineno"> 1336</span> <span class="comment"> * @param kv_attr_name The name of the key-value table contains the encoded</span></div> |
| <div class="line"><a name="l01337"></a><span class="lineno"> 1337</span> <span class="comment"> * result for all the features. For continuous feature,</span></div> |
| <div class="line"><a name="l01338"></a><span class="lineno"> 1338</span> <span class="comment"> * it kept the average value of it if in 'explicit' mode;</span></div> |
| <div class="line"><a name="l01339"></a><span class="lineno"> 1339</span> <span class="comment"> * nothing will kept if in 'ignore' mode.</span></div> |
| <div class="line"><a name="l01340"></a><span class="lineno"> 1340</span> <span class="comment"> * @param breakup_tbl_name The name of the breakup table from raw training table.</span></div> |
| <div class="line"><a name="l01341"></a><span class="lineno"> 1341</span> <span class="comment"> * @param h2hmv_routine_id The ID of the routine which specifies </span></div> |
| <div class="line"><a name="l01342"></a><span class="lineno"> 1342</span> <span class="comment"> * How to handle missing value(h2hmv).</span></div> |
| <div class="line"><a name="l01343"></a><span class="lineno"> 1343</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode.</span></div> |
| <div class="line"><a name="l01344"></a><span class="lineno"> 1344</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01345"></a><span class="lineno"> 1345</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01346"></a><span class="lineno"> 1346</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01347"></a><span class="lineno"> 1347</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__encode_columns</div> |
| <div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>  (</div> |
| <div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  kv_attr_name TEXT,</div> |
| <div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>  breakup_tbl_name TEXT,</div> |
| <div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  h2hmv_routine_id INT,</div> |
| <div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  verbosity INT</div> |
| <div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  )</div> |
| <div class="line"><a name="l01354"></a><span class="lineno"> 1354</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01355"></a><span class="lineno"> 1355</span> DECLARE</div> |
| <div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  tmp_txt TEXT = '';</div> |
| <div class="line"><a name="l01358"></a><span class="lineno"> 1358</span> BEGIN</div> |
| <div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  </div> |
| <div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  -- This table will be used to generate the KV table</div> |
| <div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  -- for the discrete features and retrieve the number </div> |
| <div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  -- of distinct values for a feature outside of this</div> |
| <div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  -- function. Therefore, don't drop this table in this</div> |
| <div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>  -- function.</div> |
| <div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  EXECUTE 'DROP TABLE IF EXISTS tmp_dist_table';</div> |
| <div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  (</div> |
| <div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>  'CREATE TEMP TABLE tmp_dist_table AS </div> |
| <div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>  SELECT fid, fval, is_cont </div> |
| <div class="line"><a name="l01370"></a><span class="lineno"> 1370</span>  FROM %</div> |
| <div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>  GROUP BY fid, fval, is_cont',</div> |
| <div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>  ARRAY[</div> |
| <div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>  breakup_tbl_name</div> |
| <div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>  ]</div> |
| <div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>  );</div> |
| <div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>  END IF;</div> |
| <div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> </div> |
| <div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01381"></a><span class="lineno"> 1381</span>  </div> |
| <div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>  -- create the KV table for all the features and</div> |
| <div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>  -- populate the keys of the discrete features</div> |
| <div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  -- to the table.</div> |
| <div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>  EXECUTE 'DROP TABLE IF EXISTS ' || kv_attr_name;</div> |
| <div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>  (</div> |
| <div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  'CREATE TABLE %(fid, fval, code) AS</div> |
| <div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  SELECT</div> |
| <div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>  fid,</div> |
| <div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  fval,</div> |
| <div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  (rank() OVER (PARTITION BY fid ORDER BY fval))::FLOAT8 AS code</div> |
| <div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  FROM tmp_dist_table</div> |
| <div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  WHERE (NOT is_cont)</div> |
| <div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (fid, fval)')',</div> |
| <div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>  ARRAY[</div> |
| <div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>  kv_attr_name</div> |
| <div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>  ]</div> |
| <div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>  );</div> |
| <div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  END IF;</div> |
| <div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>  </div> |
| <div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  -- In "explicit" mode, we need to replace the missing</div> |
| <div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  -- value with the average value. Therefore, we keep</div> |
| <div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  -- those values to the KV table.</div> |
| <div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>  IF (h2hmv_routine_id = 2) THEN</div> |
| <div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  (</div> |
| <div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  'INSERT INTO %(fid, fval, code)</div> |
| <div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  SELECT</div> |
| <div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>  fid,</div> |
| <div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>  null, </div> |
| <div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  coalesce(<a class="code" href="linalg_8sql__in.html#a1aa37f73fb1cd8d7d106aa518dd8c0b4" title="Compute the average of vectors. ">avg</a>(fval::FLOAT8), 0.0)</div> |
| <div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  FROM</div> |
| <div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  % s </div> |
| <div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  WHERE is_cont</div> |
| <div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>  GROUP BY fid',</div> |
| <div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  ARRAY[</div> |
| <div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>  kv_attr_name,</div> |
| <div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>  breakup_tbl_name</div> |
| <div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>  ]</div> |
| <div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>  ); </div> |
| <div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>  END IF;</div> |
| <div class="line"><a name="l01428"></a><span class="lineno"> 1428</span> </div> |
| <div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  END IF;</div> |
| <div class="line"><a name="l01431"></a><span class="lineno"> 1431</span> END</div> |
| <div class="line"><a name="l01432"></a><span class="lineno"> 1432</span> $$ LANGUAGE PLPGSQL;</div> |
| <div class="line"><a name="l01433"></a><span class="lineno"> 1433</span> </div> |
| <div class="line"><a name="l01434"></a><span class="lineno"> 1434</span> </div> |
| <div class="line"><a name="l01435"></a><span class="lineno"> 1435</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l01436"></a><span class="lineno"> 1436</span> <span class="comment"> * @brief Encode a table for training in C4.5 and RF.</span></div> |
| <div class="line"><a name="l01437"></a><span class="lineno"> 1437</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01438"></a><span class="lineno"> 1438</span> <span class="comment"> * @param input_tbl_name The full name of the input table.</span></div> |
| <div class="line"><a name="l01439"></a><span class="lineno"> 1439</span> <span class="comment"> * @param id_col_name The name of id column.</span></div> |
| <div class="line"><a name="l01440"></a><span class="lineno"> 1440</span> <span class="comment"> * @param feature_names An array contains all the feature. If it's null, </span></div> |
| <div class="line"><a name="l01441"></a><span class="lineno"> 1441</span> <span class="comment"> * we will get all the columns of the input table.</span></div> |
| <div class="line"><a name="l01442"></a><span class="lineno"> 1442</span> <span class="comment"> * @param cls_col_name The name of class column.</span></div> |
| <div class="line"><a name="l01443"></a><span class="lineno"> 1443</span> <span class="comment"> * @param cont_attr_names An array contains all the continuous feature.</span></div> |
| <div class="line"><a name="l01444"></a><span class="lineno"> 1444</span> <span class="comment"> * Null means no continuous feature.</span></div> |
| <div class="line"><a name="l01445"></a><span class="lineno"> 1445</span> <span class="comment"> * @param enc_table_name The full name of the encoded table.</span></div> |
| <div class="line"><a name="l01446"></a><span class="lineno"> 1446</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l01447"></a><span class="lineno"> 1447</span> <span class="comment"> * @param h2hmv_routine_id The ID of the routine which specifies </span></div> |
| <div class="line"><a name="l01448"></a><span class="lineno"> 1448</span> <span class="comment"> * How to handle missing value(h2hmv).</span></div> |
| <div class="line"><a name="l01449"></a><span class="lineno"> 1449</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode. </span></div> |
| <div class="line"><a name="l01450"></a><span class="lineno"> 1450</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01451"></a><span class="lineno"> 1451</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01452"></a><span class="lineno"> 1452</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__encode_table</div> |
| <div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>  (</div> |
| <div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>  input_tbl_name TEXT, </div> |
| <div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>  id_col_name TEXT, </div> |
| <div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>  feature_names TEXT[],</div> |
| <div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>  cls_col_name TEXT, </div> |
| <div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>  cont_attr_names TEXT[], </div> |
| <div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>  enc_table_name TEXT,</div> |
| <div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>  meta_tbl_name TEXT,</div> |
| <div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>  h2hmv_routine_id INT,</div> |
| <div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>  verbosity INT</div> |
| <div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>  ) </div> |
| <div class="line"><a name="l01464"></a><span class="lineno"> 1464</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01465"></a><span class="lineno"> 1465</span> DECLARE</div> |
| <div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>  curstmt TEXT := '';</div> |
| <div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>  attr_col_names TEXT[]; </div> |
| <div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  lit_attr_col_names TEXT[];</div> |
| <div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>  kv_attr_name TEXT := enc_table_name || '_col';</div> |
| <div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>  kv_cls_name TEXT := enc_table_name || '_class';</div> |
| <div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>  is_conts BOOL[];</div> |
| <div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>  breakup_tbl_name TEXT := 'tmp_breakup_table';</div> |
| <div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  exec_begin TIMESTAMP;</div> |
| <div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  ret MADLIB_SCHEMA.__enc_tbl_result;</div> |
| <div class="line"><a name="l01475"></a><span class="lineno"> 1475</span> BEGIN</div> |
| <div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  </div> |
| <div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  -- validate the training table</div> |
| <div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>  PERFORM MADLIB_SCHEMA.__validate_input_table</div> |
| <div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  (</div> |
| <div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>  feature_names,</div> |
| <div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>  id_col_name,</div> |
| <div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>  cls_col_name</div> |
| <div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>  );</div> |
| <div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>  </div> |
| <div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>  -- create metatable</div> |
| <div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>  PERFORM MADLIB_SCHEMA.__create_metatable(meta_tbl_name);</div> |
| <div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>  </div> |
| <div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>  -- retrieve all the features' names</div> |
| <div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>  IF (feature_names IS NULL) THEN</div> |
| <div class="line"><a name="l01492"></a><span class="lineno"> 1492</span> m4_changequote(`>>>', `<<<')</div> |
| <div class="line"><a name="l01493"></a><span class="lineno"> 1493</span> m4_ifdef(`__HAS_ORDERED_AGGREGATES__', >>></div> |
| <div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  (</div> |
| <div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>  'SELECT <a class="code" href="array__ops_8sql__in.html#af9f60293134ba4ce05b1f97f6faba822" title="ARRAY_AGG aggregate for compatibility with GPDB < 4.1 and Postgres < 9.0 This is a slower solution th...">array_agg</a>(quote_ident(attname) ORDER BY attname) as attnames </div> |
| <div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  FROM pg_attribute </div> |
| <div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  WHERE attrelid = ''%''::regclass and attnum > 0 AND </div> |
| <div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  attname <> ''%'' AND</div> |
| <div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  attname <> ''%'' AND</div> |
| <div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  NOT attisdropped;', </div> |
| <div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  ARRAY[</div> |
| <div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  id_col_name,</div> |
| <div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  cls_col_name</div> |
| <div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  ]</div> |
| <div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  ); </div> |
| <div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  </div> |
| <div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>  EXECUTE curstmt INTO attr_col_names;</div> |
| <div class="line"><a name="l01510"></a><span class="lineno"> 1510</span> <<<, >>></div> |
| <div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  (</div> |
| <div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>  'SELECT ARRAY</div> |
| <div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>  (</div> |
| <div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>  SELECT quote_ident(attname) </div> |
| <div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  FROM pg_attribute </div> |
| <div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  WHERE attrelid = ''%''::regclass and attnum > 0 AND </div> |
| <div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  attname <> ''%'' AND</div> |
| <div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>  attname <> ''%'' AND</div> |
| <div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>  NOT attisdropped</div> |
| <div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>  ORDER BY attname</div> |
| <div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  LIMIT ALL</div> |
| <div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  )', </div> |
| <div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>  ARRAY[</div> |
| <div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  id_col_name,</div> |
| <div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  cls_col_name</div> |
| <div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  ]</div> |
| <div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  ); </div> |
| <div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  EXECUTE curstmt INTO attr_col_names;</div> |
| <div class="line"><a name="l01531"></a><span class="lineno"> 1531</span> <<<)</div> |
| <div class="line"><a name="l01532"></a><span class="lineno"> 1532</span> m4_changequote(>>>`<<<, >>>'<<<) </div> |
| <div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>  ELSE</div> |
| <div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  attr_col_names = MADLIB_SCHEMA.__array_sort(feature_names);</div> |
| <div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  END IF;</div> |
| <div class="line"><a name="l01536"></a><span class="lineno"> 1536</span> </div> |
| <div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>  -- an array contains if a feature is continuous or not</div> |
| <div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>  -- the subscript is corresponding to the feature's ID </div> |
| <div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>  is_conts = MADLIB_SCHEMA.__array_elem_in(cont_attr_names, attr_col_names);</div> |
| <div class="line"><a name="l01540"></a><span class="lineno"> 1540</span> </div> |
| <div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  ret.pre_proc_time = clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01543"></a><span class="lineno"> 1543</span> </div> |
| <div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>  -- create the KV table for the class column.</div> |
| <div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>  EXECUTE 'DROP TABLE IF EXISTS ' || kv_cls_name;</div> |
| <div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  (</div> |
| <div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  'CREATE TABLE % AS</div> |
| <div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>  SELECT 0 as fid, </div> |
| <div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>  MADLIB_SCHEMA.__to_char(%) AS fval, </div> |
| <div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>  rank() OVER (ORDER BY %) AS code</div> |
| <div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>  FROM </div> |
| <div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>  (</div> |
| <div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>  SELECT % FROM % GROUP BY %</div> |
| <div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  ) t</div> |
| <div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  m4_ifdef(`__GREENPLUM__', `DISTRIBUTED BY (fval)')',</div> |
| <div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>  ARRAY[</div> |
| <div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>  kv_cls_name,</div> |
| <div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>  cls_col_name,</div> |
| <div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>  cls_col_name,</div> |
| <div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>  cls_col_name,</div> |
| <div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>  cls_col_name</div> |
| <div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>  ]</div> |
| <div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>  );</div> |
| <div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>  RAISE INFO '%', curstmt;</div> |
| <div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>  END IF;</div> |
| <div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>  </div> |
| <div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>  ret.gen_kv_time = clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>  </div> |
| <div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>  -- breakup each record of the training table and keep the result</div> |
| <div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>  -- into a new table.</div> |
| <div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>  PERFORM MADLIB_SCHEMA.__breakup_table</div> |
| <div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>  (</div> |
| <div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>  kv_cls_name,</div> |
| <div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>  id_col_name,</div> |
| <div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>  cls_col_name,</div> |
| <div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>  attr_col_names,</div> |
| <div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>  is_conts,</div> |
| <div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>  h2hmv_routine_id,</div> |
| <div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>  verbosity</div> |
| <div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>  ); </div> |
| <div class="line"><a name="l01588"></a><span class="lineno"> 1588</span> </div> |
| <div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  ret.breakup_tbl_time= clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>  </div> |
| <div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  -- generate the KV table for both continuous features</div> |
| <div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  -- and discrete features.</div> |
| <div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>  PERFORM MADLIB_SCHEMA.__encode_columns</div> |
| <div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  ( </div> |
| <div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  kv_attr_name,</div> |
| <div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>  h2hmv_routine_id,</div> |
| <div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  verbosity</div> |
| <div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  );</div> |
| <div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  </div> |
| <div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  ret.gen_kv_time = ret.gen_kv_time + (clock_timestamp() - exec_begin);</div> |
| <div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>  </div> |
| <div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>  -- generate the encoded table using the breakup table</div> |
| <div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  -- and KV table for all the features.</div> |
| <div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  PERFORM MADLIB_SCHEMA.__gen_vertical_encoded_table</div> |
| <div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>  (</div> |
| <div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>  breakup_tbl_name, </div> |
| <div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>  enc_table_name,</div> |
| <div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>  kv_attr_name,</div> |
| <div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>  'f'::BOOL,</div> |
| <div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>  verbosity</div> |
| <div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  ); </div> |
| <div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  </div> |
| <div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>  ret.gen_enc_time = clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  </div> |
| <div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>  SELECT ARRAY(SELECT quote_literal(unnest(attr_col_names))) INTO lit_attr_col_names;</div> |
| <div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  </div> |
| <div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  -- put the features' meta information to the metatable</div> |
| <div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  (</div> |
| <div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>  'INSERT INTO %</div> |
| <div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  SELECT fid as <span class="keywordtype">id</span>, (ARRAY[%])[fid] as column_name,</div> |
| <div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  ''f'' as column_type,</div> |
| <div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  is_cont,</div> |
| <div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>  ''%''::regclass::OID,</div> |
| <div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  count(fid) as num_dist_value</div> |
| <div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>  FROM % t</div> |
| <div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>  GROUP BY fid, is_cont',</div> |
| <div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>  ARRAY[</div> |
| <div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>  array_to_string(lit_attr_col_names, ','),</div> |
| <div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>  kv_attr_name, </div> |
| <div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  'tmp_dist_table'</div> |
| <div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  ]</div> |
| <div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  );</div> |
| <div class="line"><a name="l01639"></a><span class="lineno"> 1639</span> </div> |
| <div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01641"></a><span class="lineno"> 1641</span> </div> |
| <div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  IF (h2hmv_routine_id = 1) THEN</div> |
| <div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>  -- retrieve the information of the columns (all the values in those </div> |
| <div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  -- columns are missing), and insert them to the meta table. </div> |
| <div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  (</div> |
| <div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  'INSERT INTO %</div> |
| <div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  SELECT <span class="keywordtype">id</span>, (ARRAY[%])[<span class="keywordtype">id</span>] as column_name,</div> |
| <div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  ''f'' as column_type, ''t'', NULL, 0</div> |
| <div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>  FROM (</div> |
| <div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  SELECT generate_series(1, %) <span class="keywordtype">id</span></div> |
| <div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  EXCEPT</div> |
| <div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  SELECT <span class="keywordtype">id</span> FROM % WHERE column_type = ''f'' </div> |
| <div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  ) t',</div> |
| <div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  ARRAY[</div> |
| <div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>  array_to_string(lit_attr_col_names, ','),</div> |
| <div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  array_upper(attr_col_names, 1)::TEXT,</div> |
| <div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>  ]</div> |
| <div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  );</div> |
| <div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  END IF;</div> |
| <div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  </div> |
| <div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>  -- no need this table</div> |
| <div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  EXECUTE 'DROP TABLE IF EXISTS tmp_dist_table';</div> |
| <div class="line"><a name="l01667"></a><span class="lineno"> 1667</span> </div> |
| <div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>  -- put the class's meta information to the metatable</div> |
| <div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  (</div> |
| <div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>  'INSERT INTO %</div> |
| <div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>  SELECT 0 as <span class="keywordtype">id</span>,''%'',</div> |
| <div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>  ''c'' as column_type,</div> |
| <div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  ''f''::BOOL,</div> |
| <div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  ''%''::regclass::OID,</div> |
| <div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>  count(code) as num_dist_value</div> |
| <div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>  FROM % t</div> |
| <div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  GROUP BY fid',</div> |
| <div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>  ARRAY[</div> |
| <div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  meta_tbl_name,</div> |
| <div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>  cls_col_name,</div> |
| <div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>  kv_cls_name, </div> |
| <div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  kv_cls_name</div> |
| <div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  ]</div> |
| <div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  );</div> |
| <div class="line"><a name="l01686"></a><span class="lineno"> 1686</span> </div> |
| <div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  EXECUTE curstmt;</div> |
| <div class="line"><a name="l01688"></a><span class="lineno"> 1688</span> </div> |
| <div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  -- put the <span class="keywordtype">id</span>'s meta information to the metatable</div> |
| <div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  PERFORM MADLIB_SCHEMA.__insert_into_metatable</div> |
| <div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  (</div> |
| <div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  meta_tbl_name, </div> |
| <div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>  array_upper(attr_col_names, 1) + 1, </div> |
| <div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>  id_col_name, </div> |
| <div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>  'i', 'f', NULL, 0</div> |
| <div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  );</div> |
| <div class="line"><a name="l01697"></a><span class="lineno"> 1697</span> </div> |
| <div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  -- analyze the table, so that later the optimizer has the statistics</div> |
| <div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>  -- information about this table</div> |
| <div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>  EXECUTE 'ANALYZE ' || enc_table_name;</div> |
| <div class="line"><a name="l01701"></a><span class="lineno"> 1701</span> </div> |
| <div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  ret.post_proc_time = clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>  </div> |
| <div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>  RAISE INFO 'time of encoding: %', ret;</div> |
| <div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>  END IF;</div> |
| <div class="line"><a name="l01707"></a><span class="lineno"> 1707</span> END</div> |
| <div class="line"><a name="l01708"></a><span class="lineno"> 1708</span> $$ LANGUAGE PLPGSQL; </div> |
| <div class="line"><a name="l01709"></a><span class="lineno"> 1709</span> </div> |
| <div class="line"><a name="l01710"></a><span class="lineno"> 1710</span> </div> |
| <div class="line"><a name="l01711"></a><span class="lineno"> 1711</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l01712"></a><span class="lineno"> 1712</span> <span class="comment"> * @brief Encode a table for classification/scoring.</span></div> |
| <div class="line"><a name="l01713"></a><span class="lineno"> 1713</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01714"></a><span class="lineno"> 1714</span> <span class="comment"> * @param input_tbl_name The full name of the input table.</span></div> |
| <div class="line"><a name="l01715"></a><span class="lineno"> 1715</span> <span class="comment"> * @param enc_tbl_name The full name of the encoded table.</span></div> |
| <div class="line"><a name="l01716"></a><span class="lineno"> 1716</span> <span class="comment"> * @param meta_tbl_name The full name of the metatable.</span></div> |
| <div class="line"><a name="l01717"></a><span class="lineno"> 1717</span> <span class="comment"> * @param h2hmv_routine_id The ID of the routine which specifies </span></div> |
| <div class="line"><a name="l01718"></a><span class="lineno"> 1718</span> <span class="comment"> * how to handle missing value(h2hmv). </span></div> |
| <div class="line"><a name="l01719"></a><span class="lineno"> 1719</span> <span class="comment"> * @param verbosity > 0 means this function runs in verbose mode. </span></div> |
| <div class="line"><a name="l01720"></a><span class="lineno"> 1720</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l01721"></a><span class="lineno"> 1721</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l01722"></a><span class="lineno"> 1722</span> CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.__encode_table</div> |
| <div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  (</div> |
| <div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>  input_tbl_name TEXT, </div> |
| <div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>  enc_tbl_name TEXT,</div> |
| <div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>  meta_tbl_name TEXT,</div> |
| <div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>  h2hmv_routine_id INT,</div> |
| <div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>  verbosity INT</div> |
| <div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>  ) </div> |
| <div class="line"><a name="l01730"></a><span class="lineno"> 1730</span> RETURNS VOID AS $$</div> |
| <div class="line"><a name="l01731"></a><span class="lineno"> 1731</span> DECLARE</div> |
| <div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  curstmt TEXT;</div> |
| <div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  attr_col_names TEXT[];</div> |
| <div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>  cls_col_name TEXT;</div> |
| <div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  id_col_name TEXT;</div> |
| <div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>  kv_attr_name TEXT;</div> |
| <div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>  kv_cls_name TEXT;</div> |
| <div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>  is_conts BOOL[];</div> |
| <div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  exec_begin TIMESTAMP;</div> |
| <div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>  breakup_tbl_name TEXT := 'tmp_breakup_table';</div> |
| <div class="line"><a name="l01741"></a><span class="lineno"> 1741</span> BEGIN</div> |
| <div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  exec_begin = clock_timestamp();</div> |
| <div class="line"><a name="l01743"></a><span class="lineno"> 1743</span> </div> |
| <div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>  (</div> |
| <div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>  'SELECT column_name FROM % WHERE column_type=''i''',</div> |
| <div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>  ); </div> |
| <div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>  EXECUTE curstmt INTO id_col_name;</div> |
| <div class="line"><a name="l01750"></a><span class="lineno"> 1750</span> </div> |
| <div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  (</div> |
| <div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  'SELECT column_name FROM % WHERE column_type=''c''',</div> |
| <div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  ); </div> |
| <div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  EXECUTE curstmt INTO cls_col_name;</div> |
| <div class="line"><a name="l01757"></a><span class="lineno"> 1757</span> </div> |
| <div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  IF (NOT MADLIB_SCHEMA.__column_exists(input_tbl_name, cls_col_name)) THEN</div> |
| <div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  cls_col_name = NULL;</div> |
| <div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>  END IF;</div> |
| <div class="line"><a name="l01761"></a><span class="lineno"> 1761</span> </div> |
| <div class="line"><a name="l01762"></a><span class="lineno"> 1762</span> m4_changequote(`>>>', `<<<')</div> |
| <div class="line"><a name="l01763"></a><span class="lineno"> 1763</span> m4_ifdef(`__HAS_ORDERED_AGGREGATES__', >>></div> |
| <div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>  (</div> |
| <div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>  'SELECT <a class="code" href="array__ops_8sql__in.html#af9f60293134ba4ce05b1f97f6faba822" title="ARRAY_AGG aggregate for compatibility with GPDB < 4.1 and Postgres < 9.0 This is a slower solution th...">array_agg</a>(column_name order by <span class="keywordtype">id</span>) </div> |
| <div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>  FROM % WHERE column_type=''f''',</div> |
| <div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  ); </div> |
| <div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  EXECUTE curstmt INTO attr_col_names;</div> |
| <div class="line"><a name="l01771"></a><span class="lineno"> 1771</span> </div> |
| <div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>  (</div> |
| <div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>  'SELECT </div> |
| <div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>  <a class="code" href="array__ops_8sql__in.html#af9f60293134ba4ce05b1f97f6faba822" title="ARRAY_AGG aggregate for compatibility with GPDB < 4.1 and Postgres < 9.0 This is a slower solution th...">array_agg</a>(is_cont order by <span class="keywordtype">id</span>) </div> |
| <div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>  FROM % </div> |
| <div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  WHERE column_type=''f''',</div> |
| <div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  ); </div> |
| <div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  EXECUTE curstmt INTO is_conts;</div> |
| <div class="line"><a name="l01781"></a><span class="lineno"> 1781</span> <<<, >>></div> |
| <div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  (</div> |
| <div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  'SELECT ARRAY</div> |
| <div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>  (</div> |
| <div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>  SELECT column_name </div> |
| <div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  FROM % WHERE column_type=''f''</div> |
| <div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  ORDER BY <span class="keywordtype">id</span></div> |
| <div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  LIMIT ALL</div> |
| <div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>  )',</div> |
| <div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>  ); </div> |
| <div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>  EXECUTE curstmt INTO attr_col_names;</div> |
| <div class="line"><a name="l01794"></a><span class="lineno"> 1794</span> </div> |
| <div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>  (</div> |
| <div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>  'SELECT ARRAY</div> |
| <div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>  (</div> |
| <div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>  SELECT is_cont </div> |
| <div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>  FROM % </div> |
| <div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>  WHERE column_type=''f''</div> |
| <div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>  ORDER BY <span class="keywordtype">id</span></div> |
| <div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>  LIMIT ALL</div> |
| <div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>  )',</div> |
| <div class="line"><a name="l01805"></a><span class="lineno"> 1805</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>  ); </div> |
| <div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>  EXECUTE curstmt INTO is_conts;</div> |
| <div class="line"><a name="l01808"></a><span class="lineno"> 1808</span> <<<)</div> |
| <div class="line"><a name="l01809"></a><span class="lineno"> 1809</span> m4_changequote(>>>`<<<, >>>'<<<)</div> |
| <div class="line"><a name="l01810"></a><span class="lineno"> 1810</span> </div> |
| <div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  (</div> |
| <div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  'SELECT </div> |
| <div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  MADLIB_SCHEMA.__regclass_to_text(table_oid) as table_name </div> |
| <div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>  FROM % </div> |
| <div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  WHERE column_type=''f'' limit 1',</div> |
| <div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>  ); </div> |
| <div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  EXECUTE curstmt INTO kv_attr_name;</div> |
| <div class="line"><a name="l01820"></a><span class="lineno"> 1820</span> </div> |
| <div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  curstmt = MADLIB_SCHEMA.__format</div> |
| <div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  (</div> |
| <div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>  'SELECT </div> |
| <div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>  MADLIB_SCHEMA.__regclass_to_text(table_oid) as table_name </div> |
| <div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>  FROM % </div> |
| <div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>  WHERE column_type=''c'' limit 1',</div> |
| <div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>  meta_tbl_name</div> |
| <div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  ); </div> |
| <div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>  EXECUTE curstmt INTO kv_cls_name;</div> |
| <div class="line"><a name="l01830"></a><span class="lineno"> 1830</span> </div> |
| <div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>  PERFORM MADLIB_SCHEMA.__validate_input_table</div> |
| <div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  (</div> |
| <div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>  input_tbl_name,</div> |
| <div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>  NULL,</div> |
| <div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>  id_col_name,</div> |
| <div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  NULL</div> |
| <div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>  );</div> |
| <div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>  </div> |
| <div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>  -- breakup each record from the classification/scoring</div> |
| <div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>  -- table and kept the results into a new table.</div> |
| <div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>  PERFORM MADLIB_SCHEMA.__breakup_table</div> |
| <div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>  (</div> |
| <div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>  input_tbl_name, </div> |
| <div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>  breakup_tbl_name,</div> |
| <div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>  kv_cls_name,</div> |
| <div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>  id_col_name,</div> |
| <div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>  cls_col_name,</div> |
| <div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>  attr_col_names,</div> |
| <div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>  is_conts,</div> |
| <div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>  h2hmv_routine_id,</div> |
| <div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>  verbosity</div> |
| <div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  ); </div> |
| <div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  </div> |
| <div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>  -- generate the vertical encoded table.</div> |
| <div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>  PERFORM MADLIB_SCHEMA.__gen_vertical_encoded_table</div> |
| <div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  (</div> |
| <div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>  breakup_tbl_name, </div> |
| <div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>  'dt_tmp_ver_table',</div> |
| <div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>  kv_attr_name,</div> |
| <div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>  't'::BOOL,</div> |
| <div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>  verbosity</div> |
| <div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>  ); </div> |
| <div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>  </div> |
| <div class="line"><a name="l01864"></a><span class="lineno"> 1864</span>  -- generate the horizontal encoded table.</div> |
| <div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>  EXECUTE 'DROP TABLE IF EXISTS ' || enc_tbl_name; </div> |
| <div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>  PERFORM MADLIB_SCHEMA.__gen_horizontal_encoded_table</div> |
| <div class="line"><a name="l01867"></a><span class="lineno"> 1867</span>  (</div> |
| <div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  enc_tbl_name,</div> |
| <div class="line"><a name="l01869"></a><span class="lineno"> 1869</span>  'dt_tmp_ver_table',</div> |
| <div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>  array_upper(is_conts, 1),</div> |
| <div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>  verbosity</div> |
| <div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>  ); </div> |
| <div class="line"><a name="l01873"></a><span class="lineno"> 1873</span> </div> |
| <div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>  EXECUTE 'DROP TABLE IF EXISTS dt_tmp_ver_table';</div> |
| <div class="line"><a name="l01875"></a><span class="lineno"> 1875</span> </div> |
| <div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>  IF (verbosity > 0) THEN</div> |
| <div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>  RAISE INFO 'Encoding time:%', clock_timestamp() - exec_begin;</div> |
| <div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>  END IF;</div> |
| <div class="line"><a name="l01879"></a><span class="lineno"> 1879</span> END</div> |
| <div class="line"><a name="l01880"></a><span class="lineno"> 1880</span> $$ LANGUAGE PLPGSQL;</div> |
| </div><!-- fragment --></div><!-- contents --> |
| </div><!-- doc-content --> |
| <!-- start footer part --> |
| <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> |
| <ul> |
| <li class="navelem"><a class="el" href="dir_704eb8350b43e1ca74c0f90ed1ba450e.html">methods</a></li><li class="navelem"><a class="el" href="dir_fbc4f2259ae1d6f6cc75298ebbd15532.html">cart</a></li><li class="navelem"><a class="el" href="dir_42a199e31e82b0c41cf7961a25e597db.html">src</a></li><li class="navelem"><a class="el" href="dir_64bd18b6b0e4b6a9c2cd2ca1d5a05b4c.html">pg_gp</a></li><li class="navelem"><a class="el" href="dt__preproc_8sql__in.html">dt_preproc.sql_in</a></li> |
| <li class="footer">Generated on Wed Aug 21 2013 16:09:52 for MADlib by |
| <a href="http://www.doxygen.org/index.html"> |
| <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.4 </li> |
| </ul> |
| </div> |
| </body> |
| </html> |
