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| <a href="summary_8sql__in.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* ----------------------------------------------------------------------- */</span><span class="comment">/**</span> |
| <a name="l00002"></a>00002 <span class="comment"> *</span> |
| <a name="l00003"></a>00003 <span class="comment"> * @file summary.sql_in</span> |
| <a name="l00004"></a>00004 <span class="comment"> *</span> |
| <a name="l00005"></a>00005 <span class="comment"> * @brief Summary function for descriptive statistics</span> |
| <a name="l00006"></a>00006 <span class="comment"> * @date Mar 2013</span> |
| <a name="l00007"></a>00007 <span class="comment"> *</span> |
| <a name="l00008"></a>00008 <span class="comment"> */</span><span class="comment">/* ------------------------------------------------------------------------*/</span> |
| <a name="l00009"></a>00009 |
| <a name="l00010"></a>00010 m4_include(`SQLCommon.m4<span class="stringliteral">')</span> |
| <a name="l00011"></a>00011 <span class="stringliteral"></span><span class="comment"></span> |
| <a name="l00012"></a>00012 <span class="comment">/**</span> |
| <a name="l00013"></a>00013 <span class="comment"></span> |
| <a name="l00014"></a>00014 <span class="comment">@addtogroup grp_summary</span> |
| <a name="l00015"></a>00015 <span class="comment"></span> |
| <a name="l00016"></a>00016 <span class="comment">@about</span> |
| <a name="l00017"></a>00017 <span class="comment"></span> |
| <a name="l00018"></a>00018 <span class="comment">'summary' is a generic function used to produce summary statistics of any data </span> |
| <a name="l00019"></a>00019 <span class="comment">table. The function invokes particular 'methods' from the MADlib library to </span> |
| <a name="l00020"></a>00020 <span class="comment">provide an overview of the data. </span> |
| <a name="l00021"></a>00021 <span class="comment"></span> |
| <a name="l00022"></a>00022 <span class="comment">@usage</span> |
| <a name="l00023"></a>00023 <span class="comment">The summary function can be invoked in the following way:</span> |
| <a name="l00024"></a>00024 <span class="comment">@verbatim</span> |
| <a name="l00025"></a>00025 <span class="comment">SELECT MADLIB_SCHEMA.summary</span> |
| <a name="l00026"></a>00026 <span class="comment">(</span> |
| <a name="l00027"></a>00027 <span class="comment"> source_table TEXT, -- Source table name (Required)</span> |
| <a name="l00028"></a>00028 <span class="comment"> output_table TEXT, -- Output table name (Required)</span> |
| <a name="l00029"></a>00029 <span class="comment"> target_cols TEXT, -- Comma separated columns for which summary is desired</span> |
| <a name="l00030"></a>00030 <span class="comment"> -- (Default: NULL - produces result for all columns)</span> |
| <a name="l00031"></a>00031 <span class="comment"> grouping_cols TEXT, -- Comma separated columns on which to group results</span> |
| <a name="l00032"></a>00032 <span class="comment"> -- (Default: NULL - provides summary on complete table)</span> |
| <a name="l00033"></a>00033 <span class="comment"> get_distinct BOOLEAN, -- Are distinct values required?</span> |
| <a name="l00034"></a>00034 <span class="comment"> -- (Default: True)</span> |
| <a name="l00035"></a>00035 <span class="comment"> get_quartiles BOOLEAN, -- Are quartiles required?</span> |
| <a name="l00036"></a>00036 <span class="comment"> -- (Default: True)</span> |
| <a name="l00037"></a>00037 <span class="comment"> ntile_array FLOAT8[], -- Array of quantile values to compute</span> |
| <a name="l00038"></a>00038 <span class="comment"> -- (Default: NULL - Quantile array not included)</span> |
| <a name="l00039"></a>00039 <span class="comment"> how_many_mfv INTEGER, -- How many most-frequent-values to compute?</span> |
| <a name="l00040"></a>00040 <span class="comment"> -- (Default: 10)</span> |
| <a name="l00041"></a>00041 <span class="comment"> get_estimates BOOLEAN -- Should we produce exact or estimated values?</span> |
| <a name="l00042"></a>00042 <span class="comment">) -- (Default: True)</span> |
| <a name="l00043"></a>00043 <span class="comment">@endverbatim</span> |
| <a name="l00044"></a>00044 <span class="comment"></span> |
| <a name="l00045"></a>00045 <span class="comment">Note:</span> |
| <a name="l00046"></a>00046 <span class="comment">- Currently, estimated values are only implemented for the distinct values </span> |
| <a name="l00047"></a>00047 <span class="comment">computation. </span> |
| <a name="l00048"></a>00048 <span class="comment">- The '<em>get_estimates</em>' parameter controls computation for two statistics</span> |
| <a name="l00049"></a>00049 <span class="comment"> - If '<em>get_estimates</em>' is True then the distinct value computation is</span> |
| <a name="l00050"></a>00050 <span class="comment"> estimated. Further, the most frequent values computation is computed using </span> |
| <a name="l00051"></a>00051 <span class="comment"> a "quick and dirty" method that does parallel aggregation in GPDB</span> |
| <a name="l00052"></a>00052 <span class="comment"> at the expense of missing some of the most frequent values.</span> |
| <a name="l00053"></a>00053 <span class="comment"> - If '<em>get_estimates</em>' is False then the distinct values are computed</span> |
| <a name="l00054"></a>00054 <span class="comment"> in a slow but exact method. The most frequent values are computed using a</span> |
| <a name="l00055"></a>00055 <span class="comment"> faithful implementation that preserves the approximation guarantees of </span> |
| <a name="l00056"></a>00056 <span class="comment"> the Cormode/Muthukrishnan method (more information in \ref grp_mfvsketch) </span> |
| <a name="l00057"></a>00057 <span class="comment"></span> |
| <a name="l00058"></a>00058 <span class="comment"></span> |
| <a name="l00059"></a>00059 <span class="comment">The output of the function is a composite type containing: </span> |
| <a name="l00060"></a>00060 <span class="comment"> ouput_table TEXT, -- Name of the output table</span> |
| <a name="l00061"></a>00061 <span class="comment"> row_count INT4, -- Number of rows in the output table</span> |
| <a name="l00062"></a>00062 <span class="comment"> duration FLOAT8 -- Time taken (in seconds) to compute the summary </span> |
| <a name="l00063"></a>00063 <span class="comment"></span> |
| <a name="l00064"></a>00064 <span class="comment">The summary stastics are stored in the 'output_table' relation provided in the</span> |
| <a name="l00065"></a>00065 <span class="comment">arguments. The relation 'output_table' can contain the following table</span> |
| <a name="l00066"></a>00066 <span class="comment">(presence of some columns depends on the argument values)</span> |
| <a name="l00067"></a>00067 <span class="comment">@verbatim</span> |
| <a name="l00068"></a>00068 <span class="comment"> - group_by_column : Group-by column names (NULL if none provided)</span> |
| <a name="l00069"></a>00069 <span class="comment"> - group_by_value : Values of the Group-by column (NULL if no grouping)</span> |
| <a name="l00070"></a>00070 <span class="comment"> - target_column : Targeted column values for which summary is requested</span> |
| <a name="l00071"></a>00071 <span class="comment"> - column_number : Physical column number for the target column, as described in pg_attribute</span> |
| <a name="l00072"></a>00072 <span class="comment"> - data_type : Data type of target column. Standard GPDB descriptors will be displayed</span> |
| <a name="l00073"></a>00073 <span class="comment"> - row_count : Number of rows for the target column</span> |
| <a name="l00074"></a>00074 <span class="comment"> - distinct_values : Number of distinct values in the target column</span> |
| <a name="l00075"></a>00075 <span class="comment"> - missing_values : Number of missing values in the target column</span> |
| <a name="l00076"></a>00076 <span class="comment"> - blank_values : Number of blank values (blanks are defined by the regular expression '^\w*$')</span> |
| <a name="l00077"></a>00077 <span class="comment"> - fraction_missing : Percentage of total rows that are missing. Will be expressed as a decimal (e.g. 0.3)</span> |
| <a name="l00078"></a>00078 <span class="comment"> - fraction_blank : Percentage of total rows that are blank. Will be expressed as a decimal (e.g. 0.3)</span> |
| <a name="l00079"></a>00079 <span class="comment"> - mean : Mean value of target column (if target is numeric, else NULL)</span> |
| <a name="l00080"></a>00080 <span class="comment"> - variance : Variance of target columns (if target is numeric, else NULL for strings)</span> |
| <a name="l00081"></a>00081 <span class="comment"> - min : Min value of target column (for strings this is the length of the shortest string)</span> |
| <a name="l00082"></a>00082 <span class="comment"> - max : Max value of target column (for strings this is the length of the longest string)</span> |
| <a name="l00083"></a>00083 <span class="comment"> - first_quartile : First quartile (25th percentile, only for numeric columns)</span> |
| <a name="l00084"></a>00084 <span class="comment"> - median : Median value of target column (if target is numeric, else NULL)</span> |
| <a name="l00085"></a>00085 <span class="comment"> - third_quartile : Third quartile (25th percentile, only for numeric columns)</span> |
| <a name="l00086"></a>00086 <span class="comment"> - quantile_array : Percentile values corresponding to ntile_array</span> |
| <a name="l00087"></a>00087 <span class="comment"> - most_frequent_values : Most frequent values</span> |
| <a name="l00088"></a>00088 <span class="comment"> - mfv_frequencies : Frequency of the most frequent values </span> |
| <a name="l00089"></a>00089 <span class="comment">@endverbatim</span> |
| <a name="l00090"></a>00090 <span class="comment"></span> |
| <a name="l00091"></a>00091 <span class="comment">The output can be obtained as</span> |
| <a name="l00092"></a>00092 <span class="comment">@verbatim</span> |
| <a name="l00093"></a>00093 <span class="comment">sql> SELECT * FROM 'output_table';</span> |
| <a name="l00094"></a>00094 <span class="comment">@endverbatim</span> |
| <a name="l00095"></a>00095 <span class="comment"></span> |
| <a name="l00096"></a>00096 <span class="comment">The usage information can be obtained at any time directly from the</span> |
| <a name="l00097"></a>00097 <span class="comment">function using</span> |
| <a name="l00098"></a>00098 <span class="comment">@verbatim</span> |
| <a name="l00099"></a>00099 <span class="comment">sql> SELECT summary('usage');</span> |
| <a name="l00100"></a>00100 <span class="comment">@endverbatim</span> |
| <a name="l00101"></a>00101 <span class="comment"></span> |
| <a name="l00102"></a>00102 <span class="comment">*/</span> |
| <a name="l00103"></a>00103 |
| <a name="l00104"></a>00104 DROP TYPE IF EXISTS MADLIB_SCHEMA.summary_result; |
| <a name="l00105"></a>00105 CREATE TYPE MADLIB_SCHEMA.summary_result AS |
| <a name="l00106"></a>00106 ( |
| <a name="l00107"></a>00107 ouputtable TEXT, |
| <a name="l00108"></a>00108 row_count INT4, |
| <a name="l00109"></a>00109 duration FLOAT8 |
| <a name="l00110"></a>00110 ); |
| <a name="l00111"></a>00111 |
| <a name="l00112"></a>00112 |
| <a name="l00113"></a>00113 ----------------------------------------------------------------------- |
| <a name="l00114"></a>00114 -- Main function for summary |
| <a name="l00115"></a>00115 ----------------------------------------------------------------------- |
| <a name="l00116"></a>00116 /* |
| <a name="l00117"></a>00117 * @brief Compute a summary statistics on a table with optional grouping support |
| <a name="l00118"></a>00118 * |
| <a name="l00119"></a>00119 * @param source_table Name of source relation containing the data |
| <a name="l00120"></a>00120 * @param output_table Name of output table name to store the summary |
| <a name="l00121"></a>00121 * @param target_cols String with comma separated list of columns on which summary is desired |
| <a name="l00122"></a>00122 * @param grouping_cols String with comma separated list of columns on which to group the data by |
| <a name="l00123"></a>00123 * @param get_distinct Should distinct values count be included in result |
| <a name="l00124"></a>00124 * @param get_quartiles Should first, second (median), and third quartiles be included in result |
| <a name="l00125"></a>00125 * @param ntile_array Array of percentiles to compute |
| <a name="l00126"></a>00126 * @param how_many_mfv How many most frequent values to compute? |
| <a name="l00127"></a>00127 * @param get_estimates Should distinct counts be an estimated (faster) or exact count? |
| <a name="l00128"></a>00128 * |
| <a name="l00129"></a>00129 * @usage |
| <a name="l00130"></a>00130 * |
| <a name="l00131"></a>00131 * <pre> SELECT MADLIB_SCHEMA.summary ( |
| <a name="l00132"></a>00132 * '<em>source_table</em><span class="stringliteral">', '</span><em>output_table</em><span class="stringliteral">', </span> |
| <a name="l00133"></a>00133 <span class="stringliteral"> * '</span><em>target_cols</em><span class="stringliteral">', '</span><em>grouping_cols</em><span class="stringliteral">', </span> |
| <a name="l00134"></a>00134 <span class="stringliteral"> * '</span><em>get_distinct</em><span class="stringliteral">', '</span><em>get_quartiles</em><span class="stringliteral">',</span> |
| <a name="l00135"></a>00135 <span class="stringliteral"> * '</span><em>ntile_array</em><span class="stringliteral">', '</span><em>how_many_mfv</em><span class="stringliteral">',</span> |
| <a name="l00136"></a>00136 <span class="stringliteral"> * '</span><em>get_estimates</em><span class="stringliteral">' </span> |
| <a name="l00137"></a>00137 <span class="stringliteral"> * );</span> |
| <a name="l00138"></a>00138 <span class="stringliteral"> * SELECT * FROM '</span><em>output_table</em><span class="stringliteral">'</span> |
| <a name="l00139"></a>00139 <span class="stringliteral"> * </pre> </span> |
| <a name="l00140"></a>00140 <span class="stringliteral"> */</span> |
| <a name="l00141"></a>00141 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00142"></a>00142 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00143"></a>00143 <span class="stringliteral">(</span> |
| <a name="l00144"></a>00144 <span class="stringliteral"> source_table TEXT, -- source table name</span> |
| <a name="l00145"></a>00145 <span class="stringliteral"> output_table TEXT, -- output table name</span> |
| <a name="l00146"></a>00146 <span class="stringliteral"> target_cols TEXT, -- comma separated list of output cols</span> |
| <a name="l00147"></a>00147 <span class="stringliteral"> grouping_cols TEXT, -- comma separated names of grouping cols</span> |
| <a name="l00148"></a>00148 <span class="stringliteral"> get_distinct BOOLEAN, -- Are distinct values required</span> |
| <a name="l00149"></a>00149 <span class="stringliteral"> get_quartiles BOOLEAN, -- Are quartiles required</span> |
| <a name="l00150"></a>00150 <span class="stringliteral"> ntile_array FLOAT8[], -- Array of quantiles to compute</span> |
| <a name="l00151"></a>00151 <span class="stringliteral"> how_many_mfv INTEGER, -- How many most frequent values to compute?</span> |
| <a name="l00152"></a>00152 <span class="stringliteral"> get_estimates BOOLEAN -- Should we produce exact or estimated</span> |
| <a name="l00153"></a>00153 <span class="stringliteral"> -- values for distinct computation</span> |
| <a name="l00154"></a>00154 <span class="stringliteral">)</span> |
| <a name="l00155"></a>00155 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00156"></a>00156 <span class="stringliteral"> PythonFunctionBodyOnly(`summary'</span>, `summary<span class="stringliteral">')</span> |
| <a name="l00157"></a>00157 <span class="stringliteral"> return summary.summary(</span> |
| <a name="l00158"></a>00158 <span class="stringliteral"> schema_madlib, source_table, output_table, target_cols, grouping_cols,</span> |
| <a name="l00159"></a>00159 <span class="stringliteral"> get_distinct, get_quartiles, ntile_array, how_many_mfv, get_estimates)</span> |
| <a name="l00160"></a>00160 <span class="stringliteral">$$ LANGUAGE plpythonu;</span> |
| <a name="l00161"></a>00161 <span class="stringliteral"></span> |
| <a name="l00162"></a>00162 <span class="stringliteral">-----------------------------------------------------------------------</span> |
| <a name="l00163"></a>00163 <span class="stringliteral">--- Overloaded functions to support optional parameters</span> |
| <a name="l00164"></a>00164 <span class="stringliteral">-----------------------------------------------------------------------</span> |
| <a name="l00165"></a>00165 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00166"></a>00166 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00167"></a>00167 <span class="stringliteral">(</span> |
| <a name="l00168"></a>00168 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00169"></a>00169 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00170"></a>00170 <span class="stringliteral"> target_cols TEXT,</span> |
| <a name="l00171"></a>00171 <span class="stringliteral"> grouping_cols TEXT,</span> |
| <a name="l00172"></a>00172 <span class="stringliteral"> get_distinct BOOLEAN,</span> |
| <a name="l00173"></a>00173 <span class="stringliteral"> get_quartiles BOOLEAN,</span> |
| <a name="l00174"></a>00174 <span class="stringliteral"> ntile_array FLOAT8[],</span> |
| <a name="l00175"></a>00175 <span class="stringliteral"> how_many_mfv INTEGER</span> |
| <a name="l00176"></a>00176 <span class="stringliteral">)</span> |
| <a name="l00177"></a>00177 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00178"></a>00178 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00179"></a>00179 <span class="stringliteral"> $1, $2, $3, $4, $5, $6, $7, $8, True)</span> |
| <a name="l00180"></a>00180 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00181"></a>00181 <span class="stringliteral"></span> |
| <a name="l00182"></a>00182 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00183"></a>00183 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00184"></a>00184 <span class="stringliteral">(</span> |
| <a name="l00185"></a>00185 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00186"></a>00186 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00187"></a>00187 <span class="stringliteral"> target_cols TEXT,</span> |
| <a name="l00188"></a>00188 <span class="stringliteral"> grouping_cols TEXT,</span> |
| <a name="l00189"></a>00189 <span class="stringliteral"> get_distinct BOOLEAN,</span> |
| <a name="l00190"></a>00190 <span class="stringliteral"> get_quartiles BOOLEAN,</span> |
| <a name="l00191"></a>00191 <span class="stringliteral"> ntile_array FLOAT8[]</span> |
| <a name="l00192"></a>00192 <span class="stringliteral">)</span> |
| <a name="l00193"></a>00193 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00194"></a>00194 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00195"></a>00195 <span class="stringliteral"> $1, $2, $3, $4, $5, $6, $7, 10, True)</span> |
| <a name="l00196"></a>00196 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00197"></a>00197 <span class="stringliteral"></span> |
| <a name="l00198"></a>00198 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00199"></a>00199 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00200"></a>00200 <span class="stringliteral">(</span> |
| <a name="l00201"></a>00201 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00202"></a>00202 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00203"></a>00203 <span class="stringliteral"> target_cols TEXT,</span> |
| <a name="l00204"></a>00204 <span class="stringliteral"> grouping_cols TEXT,</span> |
| <a name="l00205"></a>00205 <span class="stringliteral"> get_distinct BOOLEAN,</span> |
| <a name="l00206"></a>00206 <span class="stringliteral"> get_quartiles BOOLEAN</span> |
| <a name="l00207"></a>00207 <span class="stringliteral">)</span> |
| <a name="l00208"></a>00208 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00209"></a>00209 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00210"></a>00210 <span class="stringliteral"> $1, $2, $3, $4, $5, $6, NULL, 10, True)</span> |
| <a name="l00211"></a>00211 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00212"></a>00212 <span class="stringliteral"></span> |
| <a name="l00213"></a>00213 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00214"></a>00214 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00215"></a>00215 <span class="stringliteral">(</span> |
| <a name="l00216"></a>00216 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00217"></a>00217 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00218"></a>00218 <span class="stringliteral"> target_cols TEXT,</span> |
| <a name="l00219"></a>00219 <span class="stringliteral"> grouping_cols TEXT,</span> |
| <a name="l00220"></a>00220 <span class="stringliteral"> get_distinct BOOLEAN</span> |
| <a name="l00221"></a>00221 <span class="stringliteral">)</span> |
| <a name="l00222"></a>00222 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00223"></a>00223 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00224"></a>00224 <span class="stringliteral"> $1, $2, $3, $4, $5, True, NULL, 10, True)</span> |
| <a name="l00225"></a>00225 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00226"></a>00226 <span class="stringliteral"></span> |
| <a name="l00227"></a>00227 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00228"></a>00228 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00229"></a>00229 <span class="stringliteral">(</span> |
| <a name="l00230"></a>00230 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00231"></a>00231 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00232"></a>00232 <span class="stringliteral"> target_cols TEXT,</span> |
| <a name="l00233"></a>00233 <span class="stringliteral"> grouping_cols TEXT</span> |
| <a name="l00234"></a>00234 <span class="stringliteral">)</span> |
| <a name="l00235"></a>00235 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00236"></a>00236 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00237"></a>00237 <span class="stringliteral"> $1, $2, $3, $4, True, True, NULL, 10, True)</span> |
| <a name="l00238"></a>00238 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00239"></a>00239 <span class="stringliteral"></span> |
| <a name="l00240"></a>00240 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00241"></a>00241 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00242"></a>00242 <span class="stringliteral">(</span> |
| <a name="l00243"></a>00243 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00244"></a>00244 <span class="stringliteral"> output_table TEXT,</span> |
| <a name="l00245"></a>00245 <span class="stringliteral"> target_cols TEXT</span> |
| <a name="l00246"></a>00246 <span class="stringliteral">)</span> |
| <a name="l00247"></a>00247 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00248"></a>00248 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00249"></a>00249 <span class="stringliteral"> $1, $2, $3, NULL, True, True, NULL, 10, True)</span> |
| <a name="l00250"></a>00250 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00251"></a>00251 <span class="stringliteral"></span> |
| <a name="l00252"></a>00252 <span class="stringliteral">CREATE OR REPLACE FUNCTION</span> |
| <a name="l00253"></a>00253 <span class="stringliteral">MADLIB_SCHEMA.summary</span> |
| <a name="l00254"></a>00254 <span class="stringliteral">(</span> |
| <a name="l00255"></a>00255 <span class="stringliteral"> source_table TEXT,</span> |
| <a name="l00256"></a>00256 <span class="stringliteral"> output_table TEXT</span> |
| <a name="l00257"></a>00257 <span class="stringliteral">)</span> |
| <a name="l00258"></a>00258 <span class="stringliteral">RETURNS MADLIB_SCHEMA.summary_result AS $$</span> |
| <a name="l00259"></a>00259 <span class="stringliteral"> SELECT MADLIB_SCHEMA.summary(</span> |
| <a name="l00260"></a>00260 <span class="stringliteral"> $1, $2, NULL, NULL, True, True, NULL, 10, True)</span> |
| <a name="l00261"></a>00261 <span class="stringliteral">$$ LANGUAGE sql;</span> |
| <a name="l00262"></a>00262 <span class="stringliteral"></span> |
| <a name="l00263"></a>00263 <span class="stringliteral">-----------------------------------------------------------------------</span> |
| <a name="l00264"></a>00264 <span class="stringliteral">-- Help functions</span> |
| <a name="l00265"></a>00265 <span class="stringliteral">-----------------------------------------------------------------------</span> |
| <a name="l00266"></a>00266 <span class="stringliteral">CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.summary(</span> |
| <a name="l00267"></a>00267 <span class="stringliteral"> input_message TEXT</span> |
| <a name="l00268"></a>00268 <span class="stringliteral">)</span> |
| <a name="l00269"></a>00269 <span class="stringliteral">RETURNS TEXT AS $$</span> |
| <a name="l00270"></a>00270 <span class="stringliteral">PythonFunctionBodyOnly(`summary'</span>, `summary<span class="stringliteral">')</span> |
| <a name="l00271"></a>00271 <span class="stringliteral"> return summary.summary_help_message(schema_madlib, input_message)</span> |
| <a name="l00272"></a>00272 <span class="stringliteral">$$ LANGUAGE plpythonu;</span> |
| <a name="l00273"></a>00273 <span class="stringliteral"></span> |
| <a name="l00274"></a>00274 <span class="stringliteral"></span> |
| <a name="l00275"></a>00275 <span class="stringliteral">CREATE OR REPLACE FUNCTION MADLIB_SCHEMA.summary()</span> |
| <a name="l00276"></a>00276 <span class="stringliteral">RETURNS TEXT AS $$</span> |
| <a name="l00277"></a>00277 <span class="stringliteral">PythonFunctionBodyOnly(`summary'</span>, `summary<span class="stringliteral">')</span> |
| <a name="l00278"></a>00278 <span class="stringliteral"> return summary.summary_help_message(schema_madlib, None)</span> |
| <a name="l00279"></a>00279 <span class="stringliteral">$$ LANGUAGE plpythonu;</span> |
| </pre></div></div> |
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