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| <div class="title">DistributedPlanner.java</div> </div> |
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| <a href="DistributedPlanner_8java.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">// Copyright 2012 Cloudera Inc.</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">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</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">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">package </span>com.cloudera.impala.planner;</div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">import</span> java.util.ArrayList;</div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">import</span> java.util.List;</div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">import</span> org.slf4j.Logger;</div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">import</span> org.slf4j.LoggerFactory;</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> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AggregateInfo.html">com.cloudera.impala.analysis.AggregateInfo</a>;</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AnalysisContext.html">com.cloudera.impala.analysis.AnalysisContext</a>;</div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">com.cloudera.impala.analysis.Analyzer</a>;</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">com.cloudera.impala.analysis.Expr</a>;</div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1InsertStmt.html">com.cloudera.impala.analysis.InsertStmt</a>;</div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">import</span> <a class="code" href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html">com.cloudera.impala.analysis.JoinOperator</a>;</div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1QueryStmt.html">com.cloudera.impala.analysis.QueryStmt</a>;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1ImpalaException.html">com.cloudera.impala.common.ImpalaException</a>;</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">com.cloudera.impala.common.InternalException</a>;</div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">import</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1NotImplementedException.html">com.cloudera.impala.common.NotImplementedException</a>;</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">import</span> com.cloudera.impala.thrift.TPartitionType;</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">import</span> com.google.common.base.Preconditions;</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">import</span> com.google.common.collect.Lists;</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html"> 42</a></span> <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html">DistributedPlanner</a> {</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ab8c582413ae6a885e84bfae482ba1a84"> 43</a></span>  <span class="keyword">private</span> <span class="keyword">final</span> <span class="keyword">static</span> Logger <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ab8c582413ae6a885e84bfae482ba1a84">LOG</a> = LoggerFactory.getLogger(DistributedPlanner.class);</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> |
| <div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357"> 45</a></span>  <span class="keyword">private</span> <span class="keyword">final</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html">PlannerContext</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>;</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#af6c34b4d45eb399182575573354eefab"> 47</a></span>  <span class="keyword">public</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#af6c34b4d45eb399182575573354eefab">DistributedPlanner</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html">PlannerContext</a> ctx) {</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a> = ctx;</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1f76d834f9eccc0d8761f4a7f9b18882"> 62</a></span>  <span class="keyword">public</span> ArrayList<PlanFragment> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1f76d834f9eccc0d8761f4a7f9b18882">createPlanFragments</a>(</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> singleNodePlan) <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1ImpalaException.html">ImpalaException</a> {</div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  Preconditions.checkState(!ctx_.isSingleNodeExec());</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  AnalysisContext.AnalysisResult analysisResult = ctx_.getAnalysisResult();</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1QueryStmt.html">QueryStmt</a> queryStmt = ctx_.getQueryStmt();</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  ArrayList<PlanFragment> fragments = Lists.newArrayList();</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// For inserts or CTAS, unless there is a limit, leave the root fragment</span></div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// partitioned, otherwise merge everything into a single coordinator fragment,</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// so we can pass it back to the client.</span></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">boolean</span> isPartitioned = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> ((analysisResult.isInsertStmt() || analysisResult.isCreateTableAsSelectStmt())</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  && !singleNodePlan.hasLimit()) {</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  Preconditions.checkState(!queryStmt.hasOffset());</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  isPartitioned = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  LOG.debug(<span class="stringliteral">"create plan fragments"</span>);</div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">long</span> perNodeMemLimit = ctx_.getQueryOptions().mem_limit;</div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  LOG.debug(<span class="stringliteral">"memlimit="</span> + Long.toString(perNodeMemLimit));</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1f76d834f9eccc0d8761f4a7f9b18882">createPlanFragments</a>(singleNodePlan, isPartitioned, perNodeMemLimit, fragments);</div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> fragments;</div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div> |
| <div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ac28ca07366b1b4fa6ee4c57c8d278e9e"> 93</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ac28ca07366b1b4fa6ee4c57c8d278e9e">createPlanFragments</a>(</div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> root, <span class="keywordtype">boolean</span> isPartitioned,</div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">long</span> perNodeMemLimit, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a>, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1NotImplementedException.html">NotImplementedException</a> {</div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  ArrayList<PlanFragment> childFragments = Lists.newArrayList();</div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">for</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> child: root.getChildren()) {</div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// allow child fragments to be partitioned, unless they contain a limit clause</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// (the result set with the limit constraint needs to be computed centrally);</span></div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// merge later if needed</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">boolean</span> childIsPartitioned = !child.hasLimit();</div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  childFragments.add(</div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1f76d834f9eccc0d8761f4a7f9b18882">createPlanFragments</a>(</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  child, childIsPartitioned, perNodeMemLimit, fragments));</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> result = null;</div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ScanNode.html">ScanNode</a>) {</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aa888002fc1dec5831aef03a801e275d4">createScanFragment</a>(root);</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  fragments.add(result);</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HashJoinNode.html">HashJoinNode</a>) {</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  Preconditions.checkState(childFragments.size() == 2);</div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a0b56ba5fe7af65032f6eaeff57d75803">createHashJoinFragment</a>(</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  (HashJoinNode) root, childFragments.get(1), childFragments.get(0),</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  perNodeMemLimit, fragments);</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1CrossJoinNode.html">CrossJoinNode</a>) {</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  Preconditions.checkState(childFragments.size() == 2);</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7d54589bfe476b908d7e0e21f67bce1a">createCrossJoinFragment</a>(</div> |
| <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  (CrossJoinNode) root, childFragments.get(1), childFragments.get(0),</div> |
| <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  perNodeMemLimit, fragments);</div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SelectNode.html">SelectNode</a>) {</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7fd6f77bd2009c2c0b11f6c0b10d6004">createSelectNodeFragment</a>((SelectNode) root, childFragments);</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1UnionNode.html">UnionNode</a>) {</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b5458f6e80bf8f40880960b80ea6906">createUnionNodeFragment</a>((UnionNode) root, childFragments, fragments);</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>) {</div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aef27fedb2a56aa22aa622a46b347fd1f">createAggregationFragment</a>(</div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  (AggregationNode) root, childFragments.get(0), fragments);</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a>) {</div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (((SortNode) root).isAnalyticSort()) {</div> |
| <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="comment">// don't parallelize this like a regular SortNode</span></div> |
| <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9d6b0d31877556042459aa46be51be5d">createAnalyticFragment</a>(</div> |
| <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  (SortNode) root, childFragments.get(0), fragments);</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a5ed26b541807ed01ed76b587f84218a2">createOrderByFragment</a>(</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  (SortNode) root, childFragments.get(0), fragments);</div> |
| <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div> |
| <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html">AnalyticEvalNode</a>) {</div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9d6b0d31877556042459aa46be51be5d">createAnalyticFragment</a>(root, childFragments.get(0), fragments);</div> |
| <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (root instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1EmptySetNode.html">EmptySetNode</a>) {</div> |
| <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  result = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(</div> |
| <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), root, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">DataPartition.UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a>(</div> |
| <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="stringliteral">"Cannot create plan fragment for this node type: "</span> + root.getExplainString());</div> |
| <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// move 'result' to end, it depends on all of its children</span></div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  fragments.remove(result);</div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  fragments.add(result);</div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (!isPartitioned && result.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html#ab799c17d7720ffe71f749437b173aca8">isPartitioned</a>()) {</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  result = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84c61c45f82c57056d13d7c4df707a58">createMergeFragment</a>(result);</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  fragments.add(result);</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div> |
| <div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a87d3e1ab5a577b16b0bcb9fe133b6ca5"> 163</a></span>  <span class="keyword">private</span> <span class="keywordtype">long</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a87d3e1ab5a577b16b0bcb9fe133b6ca5">getNumDistinctValues</a>(List<Expr> exprs) {</div> |
| <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">long</span> result = 1;</div> |
| <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">for</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">Expr</a> expr: exprs) {</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  result *= expr.getNumDistinctValues();</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (result < 0) <span class="keywordflow">return</span> -1;</div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div> |
| <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">return</span> result;</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div> |
| <div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1fe63b0d1e74142ca82a7e3a1191fe8b"> 181</a></span>  <span class="keyword">public</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1fe63b0d1e74142ca82a7e3a1191fe8b">createInsertFragment</a>(</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> inputFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1InsertStmt.html">InsertStmt</a> insertStmt, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">Analyzer</a> analyzer,</div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  List<Expr> partitionExprs = insertStmt.getPartitionKeyExprs();</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  Boolean partitionHint = insertStmt.isRepartition();</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> (partitionExprs.isEmpty()) <span class="keywordflow">return</span> inputFragment;</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (partitionHint != null && !partitionHint) <span class="keywordflow">return</span> inputFragment;</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// we ignore constants for the sake of partitioning</span></div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  List<Expr> nonConstPartitionExprs = Lists.newArrayList(partitionExprs);</div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  Expr.removeConstants(nonConstPartitionExprs);</div> |
| <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> inputPartition = inputFragment.getDataPartition();</div> |
| <div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div> |
| <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// do nothing if the input fragment is already appropriately partitioned</span></div> |
| <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (analyzer.equivSets(inputPartition.getPartitionExprs(),</div> |
| <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  nonConstPartitionExprs)) {</div> |
| <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> inputFragment;</div> |
| <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div> |
| <div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div> |
| <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// if the existing partition exprs are a subset of the table partition exprs, check</span></div> |
| <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// if it is distributed across all nodes; if so, don't repartition</span></div> |
| <div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">Expr</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html#a4823dc8b6430c7dcc3de2b41c63d77f1">isSubset</a>(inputPartition.getPartitionExprs(), nonConstPartitionExprs)) {</div> |
| <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">long</span> numPartitions = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a87d3e1ab5a577b16b0bcb9fe133b6ca5">getNumDistinctValues</a>(inputPartition.getPartitionExprs());</div> |
| <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (numPartitions >= inputFragment.getNumNodes()) <span class="keywordflow">return</span> inputFragment;</div> |
| <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  }</div> |
| <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div> |
| <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// don't repartition if the resulting number of partitions is too low to get good</span></div> |
| <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// parallelism</span></div> |
| <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">long</span> numPartitions = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a87d3e1ab5a577b16b0bcb9fe133b6ca5">getNumDistinctValues</a>(nonConstPartitionExprs);</div> |
| <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div> |
| <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// don't repartition if we know we have fewer partitions than nodes</span></div> |
| <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// (ie, default to repartitioning if col stats are missing)</span></div> |
| <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// TODO: we want to repartition if the resulting files would otherwise</span></div> |
| <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">// be very small (less than some reasonable multiple of the recommended block size);</span></div> |
| <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// in order to do that, we need to come up with an estimate of the avg row size</span></div> |
| <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// in the particular file format of the output table/partition.</span></div> |
| <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// We should always know on how many nodes our input is running.</span></div> |
| <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  Preconditions.checkState(inputFragment.getNumNodes() != -1);</div> |
| <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (partitionHint == null && numPartitions > 0 &&</div> |
| <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  numPartitions <= inputFragment.getNumNodes()) {</div> |
| <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> inputFragment;</div> |
| <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  }</div> |
| <div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div> |
| <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  Preconditions.checkState(partitionHint == null || partitionHint);</div> |
| <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> exchNode = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  exchNode.addChild(inputFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  exchNode.init(analyzer);</div> |
| <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  Preconditions.checkState(exchNode.hasValidStats());</div> |
| <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> partition =</div> |
| <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED, nonConstPartitionExprs);</div> |
| <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> fragment =</div> |
| <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), exchNode, partition);</div> |
| <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  inputFragment.setDestination(exchNode);</div> |
| <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  inputFragment.setOutputPartition(partition);</div> |
| <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  fragments.add(fragment);</div> |
| <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> fragment;</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> </div> |
| <div class="line"><a name="l00245"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84c61c45f82c57056d13d7c4df707a58"> 245</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84c61c45f82c57056d13d7c4df707a58">createMergeFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> inputFragment)</div> |
| <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  Preconditions.checkState(inputFragment.isPartitioned());</div> |
| <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> mergePlan = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  mergePlan.addChild(inputFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  mergePlan.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  Preconditions.checkState(mergePlan.hasValidStats());</div> |
| <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> fragment = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), mergePlan,</div> |
| <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">DataPartition.UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  inputFragment.setDestination(mergePlan);</div> |
| <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> fragment;</div> |
| <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div> |
| <div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div> |
| <div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aa888002fc1dec5831aef03a801e275d4"> 264</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aa888002fc1dec5831aef03a801e275d4">createScanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> node) {</div> |
| <div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), node, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a9823fe91d6da0575f6c20180b3cba9eb">DataPartition.RANDOM</a>);</div> |
| <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div> |
| <div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div> |
| <div class="line"><a name="l00273"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7d54589bfe476b908d7e0e21f67bce1a"> 273</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7d54589bfe476b908d7e0e21f67bce1a">createCrossJoinFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1CrossJoinNode.html">CrossJoinNode</a> node,</div> |
| <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> rightChildFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> leftChildFragment,</div> |
| <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordtype">long</span> perNodeMemLimit, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  node.setChild(0, leftChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(node, 1, rightChildFragment);</div> |
| <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  leftChildFragment.setPlanRoot(node);</div> |
| <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span> leftChildFragment;</div> |
| <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div> |
| <div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div> |
| <div class="line"><a name="l00294"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a0b56ba5fe7af65032f6eaeff57d75803"> 294</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a0b56ba5fe7af65032f6eaeff57d75803">createHashJoinFragment</a>(</div> |
| <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HashJoinNode.html">HashJoinNode</a> node, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> rightChildFragment,</div> |
| <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> leftChildFragment, <span class="keywordtype">long</span> perNodeMemLimit,</div> |
| <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// broadcast: send the rightChildFragment's output to each node executing</span></div> |
| <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// the leftChildFragment; the cost across all nodes is proportional to the</span></div> |
| <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// total amount of data sent</span></div> |
| <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">Analyzer</a> analyzer = ctx_.getRootAnalyzer();</div> |
| <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> rhsTree = rightChildFragment.getPlanRoot();</div> |
| <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordtype">long</span> rhsDataSize = 0;</div> |
| <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordtype">long</span> broadcastCost = Long.MAX_VALUE;</div> |
| <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> (rhsTree.getCardinality() != -1 && leftChildFragment.getNumNodes() != -1) {</div> |
| <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  rhsDataSize = Math.round(</div> |
| <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  (double) rhsTree.getCardinality() * rhsTree.getAvgRowSize());</div> |
| <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  broadcastCost = rhsDataSize * leftChildFragment.getNumNodes();</div> |
| <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div> |
| <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  LOG.debug(<span class="stringliteral">"broadcast: cost="</span> + Long.toString(broadcastCost));</div> |
| <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  LOG.debug(<span class="stringliteral">"card="</span> + Long.toString(rhsTree.getCardinality()) + <span class="stringliteral">" row_size="</span></div> |
| <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  + Float.toString(rhsTree.getAvgRowSize()) + <span class="stringliteral">" #nodes="</span></div> |
| <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  + Integer.toString(leftChildFragment.getNumNodes()));</div> |
| <div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div> |
| <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// repartition: both left- and rightChildFragment are partitioned on the</span></div> |
| <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// join exprs</span></div> |
| <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> lhsTree = leftChildFragment.getPlanRoot();</div> |
| <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">long</span> partitionCost = Long.MAX_VALUE;</div> |
| <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  List<Expr> lhsJoinExprs = Lists.newArrayList();</div> |
| <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  List<Expr> rhsJoinExprs = Lists.newArrayList();</div> |
| <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">for</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">Expr</a> joinConjunct: node.getEqJoinConjuncts()) {</div> |
| <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// no remapping necessary</span></div> |
| <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  lhsJoinExprs.add(joinConjunct.getChild(0).clone());</div> |
| <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  rhsJoinExprs.add(joinConjunct.getChild(1).clone());</div> |
| <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  }</div> |
| <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordtype">boolean</span> lhsHasCompatPartition = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordtype">boolean</span> rhsHasCompatPartition = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">if</span> (lhsTree.getCardinality() != -1 && rhsTree.getCardinality() != -1) {</div> |
| <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  lhsHasCompatPartition = analyzer.equivSets(lhsJoinExprs,</div> |
| <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  leftChildFragment.getDataPartition().getPartitionExprs());</div> |
| <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  rhsHasCompatPartition = analyzer.equivSets(rhsJoinExprs,</div> |
| <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  rightChildFragment.getDataPartition().getPartitionExprs());</div> |
| <div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div> |
| <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordtype">double</span> lhsCost = (lhsHasCompatPartition) ? 0.0 :</div> |
| <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  Math.round((<span class="keywordtype">double</span>) lhsTree.getCardinality() * lhsTree.getAvgRowSize());</div> |
| <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordtype">double</span> rhsCost = (rhsHasCompatPartition) ? 0.0 :</div> |
| <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  Math.round((<span class="keywordtype">double</span>) rhsTree.getCardinality() * rhsTree.getAvgRowSize());</div> |
| <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  partitionCost = Math.round(lhsCost + rhsCost);</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>  LOG.debug(<span class="stringliteral">"partition: cost="</span> + Long.toString(partitionCost));</div> |
| <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  LOG.debug(<span class="stringliteral">"lhs card="</span> + Long.toString(lhsTree.getCardinality()) + <span class="stringliteral">" row_size="</span></div> |
| <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  + Float.toString(lhsTree.getAvgRowSize()));</div> |
| <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  LOG.debug(<span class="stringliteral">"rhs card="</span> + Long.toString(rhsTree.getCardinality()) + <span class="stringliteral">" row_size="</span></div> |
| <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  + Float.toString(rhsTree.getAvgRowSize()));</div> |
| <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  LOG.debug(rhsTree.getExplainString());</div> |
| <div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div> |
| <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordtype">boolean</span> doBroadcast;</div> |
| <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// we do a broadcast join if</span></div> |
| <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// - we're explicitly told to do so</span></div> |
| <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="comment">// - or if it's cheaper and we weren't explicitly told to do a partitioned join</span></div> |
| <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="comment">// - and we're not doing a full outer or right outer/semi join (those require the</span></div> |
| <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// left-hand side to be partitioned for correctness)</span></div> |
| <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">// - and the expected size of the hash tbl doesn't exceed perNodeMemLimit</span></div> |
| <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// - or we are doing a null-aware left anti join (broadcast is required for</span></div> |
| <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// correctness)</span></div> |
| <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="comment">// we do a "<=" comparison of the costs so that we default to broadcast joins if</span></div> |
| <div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// we're unable to estimate the cost</span></div> |
| <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">if</span> ((node.getJoinOp() != JoinOperator.RIGHT_OUTER_JOIN</div> |
| <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  && node.getJoinOp() != <a class="code" href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html">JoinOperator</a>.<a class="code" href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html#afb6be8664ecdc718fd06d7fb5d55bf02">FULL_OUTER_JOIN</a></div> |
| <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  && node.getJoinOp() != JoinOperator.RIGHT_SEMI_JOIN</div> |
| <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  && node.getJoinOp() != <a class="code" href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html">JoinOperator</a>.<a class="code" href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html#a228a3d9cb07d7db059ffe917442b78a7">RIGHT_ANTI_JOIN</a></div> |
| <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  && (perNodeMemLimit == 0</div> |
| <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  || Math.round((<span class="keywordtype">double</span>) rhsDataSize * <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html">PlannerContext</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#a3031c8d5760b5a1652ca923167bf88da">HASH_TBL_SPACE_OVERHEAD</a>)</div> |
| <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <= perNodeMemLimit)</div> |
| <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  && (node.getTableRef().isBroadcastJoin()</div> |
| <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  || (!node.getTableRef().isPartitionedJoin()</div> |
| <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  && broadcastCost <= partitionCost)))</div> |
| <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  || node.getJoinOp().isNullAwareLeftAntiJoin()) {</div> |
| <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  doBroadcast = <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  doBroadcast = <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div> |
| <div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div> |
| <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">if</span> (doBroadcast) {</div> |
| <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  node.setDistributionMode(HashJoinNode.DistributionMode.BROADCAST);</div> |
| <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// Doesn't create a new fragment, but modifies leftChildFragment to execute</span></div> |
| <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="comment">// the join; the build input is provided by an ExchangeNode, which is the</span></div> |
| <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="comment">// destination of the rightChildFragment's output</span></div> |
| <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  node.setChild(0, leftChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(node, 1, rightChildFragment);</div> |
| <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  leftChildFragment.setPlanRoot(node);</div> |
| <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> leftChildFragment;</div> |
| <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  node.setDistributionMode(HashJoinNode.DistributionMode.PARTITIONED);</div> |
| <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// The lhs and rhs input fragments are already partitioned on the join exprs.</span></div> |
| <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// Combine the lhs/rhs input fragments into leftChildFragment by placing the join</span></div> |
| <div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// node into leftChildFragment and setting its lhs/rhs children to the plan root of</span></div> |
| <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// the lhs/rhs child fragment, respectively. No new child fragments or exchanges</span></div> |
| <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="comment">// are created, and the rhs fragment is removed.</span></div> |
| <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// TODO: Relax the isCompatPartition() check below. The check is conservative and</span></div> |
| <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">// may reject partitions that could be made physically compatible. Fix this by</span></div> |
| <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">// removing equivalent duplicates from partition exprs and impose a canonical order</span></div> |
| <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// on partition exprs (both using the canonical equivalence class representatives).</span></div> |
| <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">if</span> (lhsHasCompatPartition</div> |
| <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  && rhsHasCompatPartition</div> |
| <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  && <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a89f4cb7d901d16507367ae3c29b52b45">isCompatPartition</a>(</div> |
| <div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  leftChildFragment.getDataPartition(),</div> |
| <div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  rightChildFragment.getDataPartition(),</div> |
| <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  lhsJoinExprs, rhsJoinExprs, analyzer)) {</div> |
| <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  node.setChild(0, leftChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  node.setChild(1, rightChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">// Redirect fragments sending to rightFragment to leftFragment.</span></div> |
| <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">for</span> (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> fragment: fragments) {</div> |
| <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">if</span> (fragment.getDestFragment() == rightChildFragment) {</div> |
| <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  fragment.setDestination(fragment.getDestNode());</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>  }</div> |
| <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">// Remove right fragment because its plan tree has been merged into leftFragment.</span></div> |
| <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  fragments.remove(rightChildFragment);</div> |
| <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  leftChildFragment.setPlanRoot(node);</div> |
| <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">return</span> leftChildFragment;</div> |
| <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</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>  <span class="comment">// The lhs input fragment is already partitioned on the join exprs.</span></div> |
| <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// Make the HashJoin the new root of leftChildFragment and set the join's</span></div> |
| <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// first child to the lhs plan root. The second child of the join is an</span></div> |
| <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// ExchangeNode that is fed by the rhsInputFragment whose sink repartitions</span></div> |
| <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">// its data by the rhs join exprs.</span></div> |
| <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> rhsJoinPartition = null;</div> |
| <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span> (lhsHasCompatPartition) {</div> |
| <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  rhsJoinPartition = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9b911a64aba180a32b062de9b140633d">getCompatPartition</a>(lhsJoinExprs,</div> |
| <div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  leftChildFragment.getDataPartition(), rhsJoinExprs, analyzer);</div> |
| <div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">if</span> (rhsJoinPartition != null) {</div> |
| <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  node.setChild(0, leftChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(node, 1, rightChildFragment);</div> |
| <div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  rightChildFragment.setOutputPartition(rhsJoinPartition);</div> |
| <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  leftChildFragment.setPlanRoot(node);</div> |
| <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">return</span> leftChildFragment;</div> |
| <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</div> |
| <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  }</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>  <span class="comment">// Same as above but with rhs and lhs reversed.</span></div> |
| <div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> lhsJoinPartition = null;</div> |
| <div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">if</span> (rhsHasCompatPartition) {</div> |
| <div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  lhsJoinPartition = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9b911a64aba180a32b062de9b140633d">getCompatPartition</a>(rhsJoinExprs,</div> |
| <div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  rightChildFragment.getDataPartition(), lhsJoinExprs, analyzer);</div> |
| <div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">if</span> (lhsJoinPartition != null) {</div> |
| <div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  node.setChild(1, rightChildFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(node, 0, leftChildFragment);</div> |
| <div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  leftChildFragment.setOutputPartition(lhsJoinPartition);</div> |
| <div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  rightChildFragment.setPlanRoot(node);</div> |
| <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">return</span> rightChildFragment;</div> |
| <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  }</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> </div> |
| <div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  Preconditions.checkState(lhsJoinPartition == null);</div> |
| <div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  Preconditions.checkState(rhsJoinPartition == null);</div> |
| <div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  lhsJoinPartition = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED,</div> |
| <div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">Expr</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html#ad1f6e6b6937b74384474820958e94a43">cloneList</a>(lhsJoinExprs));</div> |
| <div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  rhsJoinPartition = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED,</div> |
| <div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">Expr</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html#ad1f6e6b6937b74384474820958e94a43">cloneList</a>(rhsJoinExprs));</div> |
| <div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div> |
| <div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">// Neither lhs nor rhs are already partitioned on the join exprs.</span></div> |
| <div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// Create a new parent fragment containing a HashJoin node with two</span></div> |
| <div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// ExchangeNodes as inputs; the latter are the destinations of the</span></div> |
| <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="comment">// left- and rightChildFragments, which now partition their output</span></div> |
| <div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="comment">// on their respective join exprs.</span></div> |
| <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="comment">// The new fragment is hash-partitioned on the lhs input join exprs.</span></div> |
| <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> lhsExchange = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  lhsExchange.addChild(leftChildFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  lhsExchange.computeStats(null);</div> |
| <div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  node.setChild(0, lhsExchange);</div> |
| <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> rhsExchange = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  rhsExchange.addChild(rightChildFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  rhsExchange.computeStats(null);</div> |
| <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  node.setChild(1, rhsExchange);</div> |
| <div class="line"><a name="l00468"></a><span class="lineno"> 468</span> </div> |
| <div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="comment">// Connect the child fragments in a new fragment, and set the data partition</span></div> |
| <div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="comment">// of the new fragment and its child fragments.</span></div> |
| <div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> joinFragment =</div> |
| <div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), node, lhsJoinPartition);</div> |
| <div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  leftChildFragment.setDestination(lhsExchange);</div> |
| <div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  leftChildFragment.setOutputPartition(lhsJoinPartition);</div> |
| <div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  rightChildFragment.setDestination(rhsExchange);</div> |
| <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  rightChildFragment.setOutputPartition(rhsJoinPartition);</div> |
| <div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div> |
| <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">return</span> joinFragment;</div> |
| <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div> |
| <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  }</div> |
| <div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div> |
| <div class="line"><a name="l00498"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a89f4cb7d901d16507367ae3c29b52b45"> 498</a></span>  <span class="keyword">private</span> <span class="keywordtype">boolean</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a89f4cb7d901d16507367ae3c29b52b45">isCompatPartition</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> lhsPartition,</div> |
| <div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> rhsPartition, List<Expr> lhsJoinExprs, List<Expr> rhsJoinExprs,</div> |
| <div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">Analyzer</a> analyzer) {</div> |
| <div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  List<Expr> lhsPartExprs = lhsPartition.getPartitionExprs();</div> |
| <div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  List<Expr> rhsPartExprs = rhsPartition.getPartitionExprs();</div> |
| <div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="comment">// 1. Sizes must be equal.</span></div> |
| <div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">if</span> (lhsPartExprs.size() != rhsPartExprs.size()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="comment">// 2. Lhs/rhs join exprs are identical to lhs/rhs partition exprs.</span></div> |
| <div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  Preconditions.checkState(lhsJoinExprs.size() == rhsJoinExprs.size());</div> |
| <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> (lhsJoinExprs.size() == lhsPartExprs.size()) {</div> |
| <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> (lhsJoinExprs.equals(lhsPartExprs) && rhsJoinExprs.equals(rhsPartExprs)) {</div> |
| <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  }</div> |
| <div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  }</div> |
| <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="comment">// 3. Each lhs part expr must have an equivalent expr at the same position</span></div> |
| <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="comment">// in the rhs part exprs.</span></div> |
| <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lhsPartExprs.size(); ++i) {</div> |
| <div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">if</span> (!analyzer.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html#ad2dc865dbb56517d6eb7996e078c0fb0">equivExprs</a>(lhsPartExprs.get(i), rhsPartExprs.get(i))) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  }</div> |
| <div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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="l00537"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9b911a64aba180a32b062de9b140633d"> 537</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9b911a64aba180a32b062de9b140633d">getCompatPartition</a>(List<Expr> srcJoinExprs,</div> |
| <div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> srcPartition, List<Expr> joinExprs, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">Analyzer</a> analyzer) {</div> |
| <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  Preconditions.checkState(srcPartition.isHashPartitioned());</div> |
| <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  List<Expr> srcPartExprs = srcPartition.getPartitionExprs();</div> |
| <div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  List<Expr> resultPartExprs = Lists.newArrayList();</div> |
| <div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < srcPartExprs.size(); ++i) {</div> |
| <div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < srcJoinExprs.size(); ++j) {</div> |
| <div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordflow">if</span> (analyzer.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html#ad2dc865dbb56517d6eb7996e078c0fb0">equivExprs</a>(srcPartExprs.get(i), srcJoinExprs.get(j))) {</div> |
| <div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  resultPartExprs.add(joinExprs.get(j).clone());</div> |
| <div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">break</span>;</div> |
| <div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  }</div> |
| <div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  }</div> |
| <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  }</div> |
| <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">if</span> (resultPartExprs.size() != srcPartExprs.size()) <span class="keywordflow">return</span> null;</div> |
| <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED, resultPartExprs);</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> </div> |
| <div class="line"><a name="l00566"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b5458f6e80bf8f40880960b80ea6906"> 566</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b5458f6e80bf8f40880960b80ea6906">createUnionNodeFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1UnionNode.html">UnionNode</a> unionNode,</div> |
| <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  ArrayList<PlanFragment> childFragments, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  Preconditions.checkState(unionNode.getChildren().size() == childFragments.size());</div> |
| <div class="line"><a name="l00570"></a><span class="lineno"> 570</span> </div> |
| <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="comment">// A UnionNode could have no children or constant selects if all of its operands</span></div> |
| <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="comment">// were dropped because of constant predicates that evaluated to false.</span></div> |
| <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keywordflow">if</span> (unionNode.getChildren().isEmpty()) {</div> |
| <div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(</div> |
| <div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(), unionNode, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">DataPartition.UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  }</div> |
| <div class="line"><a name="l00577"></a><span class="lineno"> 577</span> </div> |
| <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  Preconditions.checkState(!childFragments.isEmpty());</div> |
| <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordtype">int</span> numUnpartitionedChildFragments = 0;</div> |
| <div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < childFragments.size(); ++i) {</div> |
| <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordflow">if</span> (!childFragments.get(i).isPartitioned()) ++numUnpartitionedChildFragments;</div> |
| <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  }</div> |
| <div class="line"><a name="l00583"></a><span class="lineno"> 583</span> </div> |
| <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="comment">// If all child fragments are unpartitioned, return a single unpartitioned fragment</span></div> |
| <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="comment">// with a UnionNode that merges all child fragments.</span></div> |
| <div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">if</span> (numUnpartitionedChildFragments == childFragments.size()) {</div> |
| <div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="comment">// Absorb the plan trees of all childFragments into unionNode.</span></div> |
| <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < childFragments.size(); ++i) {</div> |
| <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  unionNode.setChild(i, childFragments.get(i).getPlanRoot());</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>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> unionFragment = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(),</div> |
| <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  unionNode, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">DataPartition.UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  unionNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="comment">// All child fragments have been absorbed into unionFragment.</span></div> |
| <div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  fragments.removeAll(childFragments);</div> |
| <div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keywordflow">return</span> unionFragment;</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> </div> |
| <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="comment">// There is at least one partitioned child fragment.</span></div> |
| <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < childFragments.size(); ++i) {</div> |
| <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment = childFragments.get(i);</div> |
| <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="keywordflow">if</span> (childFragment.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html#ab799c17d7720ffe71f749437b173aca8">isPartitioned</a>()) {</div> |
| <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="comment">// Absorb the plan trees of all partitioned child fragments into unionNode.</span></div> |
| <div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  unionNode.setChild(i, childFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  fragments.remove(childFragment);</div> |
| <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="comment">// Connect the unpartitioned child fragments to unionNode via a random exchange.</span></div> |
| <div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(unionNode, i, childFragment);</div> |
| <div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  childFragment.setOutputPartition(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a9823fe91d6da0575f6c20180b3cba9eb">DataPartition.RANDOM</a>);</div> |
| <div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  }</div> |
| <div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  }</div> |
| <div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div> |
| <div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="comment">// Fragment contains the UnionNode that consumes the data of all child fragments.</span></div> |
| <div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> unionFragment = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(),</div> |
| <div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  unionNode, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a9823fe91d6da0575f6c20180b3cba9eb">DataPartition.RANDOM</a>);</div> |
| <div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  unionNode.reorderOperands(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  unionNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">return</span> unionFragment;</div> |
| <div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  }</div> |
| <div class="line"><a name="l00620"></a><span class="lineno"> 620</span> </div> |
| <div class="line"><a name="l00625"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7fd6f77bd2009c2c0b11f6c0b10d6004"> 625</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7fd6f77bd2009c2c0b11f6c0b10d6004">createSelectNodeFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SelectNode.html">SelectNode</a> selectNode,</div> |
| <div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  ArrayList<PlanFragment> childFragments) {</div> |
| <div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  Preconditions.checkState(selectNode.getChildren().size() == childFragments.size());</div> |
| <div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment = childFragments.get(0);</div> |
| <div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="comment">// set the child explicitly, an ExchangeNode might have been inserted</span></div> |
| <div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="comment">// (whereas selectNode.child[0] would point to the original child)</span></div> |
| <div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  selectNode.setChild(0, childFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  childFragment.setPlanRoot(selectNode);</div> |
| <div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keywordflow">return</span> childFragment;</div> |
| <div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  }</div> |
| <div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div> |
| <div class="line"><a name="l00640"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76"> 640</a></span>  <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">connectChildFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> node, <span class="keywordtype">int</span> childIdx,</div> |
| <div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment) <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> exchangeNode = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  exchangeNode.addChild(childFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  exchangeNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  node.setChild(childIdx, exchangeNode);</div> |
| <div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  childFragment.setDestination(exchangeNode);</div> |
| <div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  }</div> |
| <div class="line"><a name="l00648"></a><span class="lineno"> 648</span> </div> |
| <div class="line"><a name="l00659"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799"> 659</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(</div> |
| <div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> parentPartition)</div> |
| <div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> exchangeNode = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>());</div> |
| <div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  exchangeNode.addChild(childFragment.getPlanRoot(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  exchangeNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> parentFragment = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">getNextFragmentId</a>(),</div> |
| <div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  exchangeNode, parentPartition);</div> |
| <div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  childFragment.setDestination(exchangeNode);</div> |
| <div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  childFragment.setOutputPartition(parentPartition);</div> |
| <div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="keywordflow">return</span> parentFragment;</div> |
| <div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  }</div> |
| <div class="line"><a name="l00671"></a><span class="lineno"> 671</span> </div> |
| <div class="line"><a name="l00681"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aef27fedb2a56aa22aa622a46b347fd1f"> 681</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aef27fedb2a56aa22aa622a46b347fd1f">createAggregationFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a> node,</div> |
| <div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  <span class="keywordflow">if</span> (!childFragment.isPartitioned()) {</div> |
| <div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="comment">// nothing to distribute; do full aggregation directly within childFragment</span></div> |
| <div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  childFragment.addPlanRoot(node);</div> |
| <div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keywordflow">return</span> childFragment;</div> |
| <div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  }</div> |
| <div class="line"><a name="l00689"></a><span class="lineno"> 689</span> </div> |
| <div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keywordflow">if</span> (node.getAggInfo().isDistinctAgg()) {</div> |
| <div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="comment">// 'node' is phase 1 of a DISTINCT aggregation; the actual agg fragment</span></div> |
| <div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="comment">// will get created in the next createAggregationFragment() call</span></div> |
| <div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="comment">// for the parent AggregationNode</span></div> |
| <div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  childFragment.addPlanRoot(node);</div> |
| <div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">return</span> childFragment;</div> |
| <div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  }</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>  ArrayList<Expr> groupingExprs = node.getAggInfo().getGroupingExprs();</div> |
| <div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordtype">boolean</span> hasGrouping = !groupingExprs.isEmpty();</div> |
| <div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="comment">// 2nd phase of DISTINCT aggregation</span></div> |
| <div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordtype">boolean</span> isDistinct =</div> |
| <div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  node.getChild(0) instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a></div> |
| <div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  && ((<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>)(node.getChild(0))).getAggInfo().isDistinctAgg();</div> |
| <div class="line"><a name="l00704"></a><span class="lineno"> 704</span> </div> |
| <div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordflow">if</span> (!isDistinct) {</div> |
| <div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="comment">// the original aggregation materializes the intermediate agg tuple and goes</span></div> |
| <div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <span class="comment">// into the child fragment; merge aggregation materializes the output agg tuple</span></div> |
| <div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="comment">// and goes into a parent fragment</span></div> |
| <div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  childFragment.addPlanRoot(node);</div> |
| <div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  node.setIntermediateTuple();</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>  <span class="comment">// if there is a limit, we need to transfer it from the pre-aggregation</span></div> |
| <div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <span class="comment">// node in the child fragment to the merge aggregation node in the parent</span></div> |
| <div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  <span class="keywordtype">long</span> limit = node.getLimit();</div> |
| <div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  node.unsetLimit();</div> |
| <div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  node.unsetNeedsFinalize();</div> |
| <div class="line"><a name="l00717"></a><span class="lineno"> 717</span> </div> |
| <div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> parentPartition = null;</div> |
| <div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keywordflow">if</span> (hasGrouping) {</div> |
| <div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="comment">// the parent fragment is partitioned on the grouping exprs;</span></div> |
| <div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="comment">// substitute grouping exprs to reference the *output* of the agg, not the input</span></div> |
| <div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  List<Expr> partitionExprs = node.getAggInfo().getPartitionExprs();</div> |
| <div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">if</span> (partitionExprs == null) partitionExprs = groupingExprs;</div> |
| <div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  partitionExprs = Expr.substituteList(partitionExprs,</div> |
| <div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  node.getAggInfo().getIntermediateSmap(), ctx_.getRootAnalyzer(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  parentPartition =</div> |
| <div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED, partitionExprs);</div> |
| <div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="comment">// the parent fragment is unpartitioned</span></div> |
| <div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  parentPartition = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">DataPartition.UNPARTITIONED</a>;</div> |
| <div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  }</div> |
| <div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div> |
| <div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="comment">// place a merge aggregation step in a new fragment</span></div> |
| <div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> mergeFragment = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(childFragment, parentPartition);</div> |
| <div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a> mergeAggNode = <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>(</div> |
| <div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>(), mergeFragment.getPlanRoot(),</div> |
| <div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  node.getAggInfo().getMergeAggInfo());</div> |
| <div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  mergeAggNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  mergeAggNode.setLimit(limit);</div> |
| <div class="line"><a name="l00740"></a><span class="lineno"> 740</span> </div> |
| <div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="comment">// HAVING predicates can only be evaluated after the merge agg step</span></div> |
| <div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  node.transferConjuncts(mergeAggNode);</div> |
| <div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="comment">// Recompute stats after transferring the conjuncts_ (order is important).</span></div> |
| <div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  node.computeStats(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  mergeFragment.getPlanRoot().computeStats(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#aab2a670e79a11c07a6b4f130a7351265">getRootAnalyzer</a>());</div> |
| <div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  mergeAggNode.computeStats(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="comment">// Set new plan root after updating stats.</span></div> |
| <div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  mergeFragment.addPlanRoot(mergeAggNode);</div> |
| <div class="line"><a name="l00749"></a><span class="lineno"> 749</span> </div> |
| <div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">return</span> mergeFragment;</div> |
| <div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  }</div> |
| <div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div> |
| <div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  Preconditions.checkState(isDistinct);</div> |
| <div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="comment">// The first-phase aggregation node is already in the child fragment.</span></div> |
| <div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  Preconditions.checkState(node.getChild(0) == childFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00756"></a><span class="lineno"> 756</span> </div> |
| <div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AggregateInfo.html">AggregateInfo</a> firstPhaseAggInfo = ((<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>) node.getChild(0)).getAggInfo();</div> |
| <div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  List<Expr> partitionExprs = null;</div> |
| <div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">if</span> (hasGrouping) {</div> |
| <div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="comment">// We need to do</span></div> |
| <div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="comment">// - child fragment:</span></div> |
| <div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="comment">// * phase-1 aggregation</span></div> |
| <div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="comment">// - merge fragment, hash-partitioned on grouping exprs:</span></div> |
| <div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="comment">// * merge agg of phase 1</span></div> |
| <div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  <span class="comment">// * phase 2 agg</span></div> |
| <div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="comment">// The output partition exprs of the child are the (input) grouping exprs of the</span></div> |
| <div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="comment">// parent. The grouping exprs reference the output tuple of the 1st phase, but the</span></div> |
| <div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="comment">// partitioning happens on the intermediate tuple of the 1st phase.</span></div> |
| <div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  partitionExprs = Expr.substituteList(</div> |
| <div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  groupingExprs, firstPhaseAggInfo.getOutputToIntermediateSmap(),</div> |
| <div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#aab2a670e79a11c07a6b4f130a7351265">getRootAnalyzer</a>(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="comment">// We need to do</span></div> |
| <div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="comment">// - child fragment:</span></div> |
| <div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="comment">// * phase-1 aggregation</span></div> |
| <div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="comment">// - merge fragment 1, hash-partitioned on distinct exprs:</span></div> |
| <div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  <span class="comment">// * merge agg of phase 1</span></div> |
| <div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="comment">// * phase 2 agg</span></div> |
| <div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="comment">// - merge fragment 2, unpartitioned:</span></div> |
| <div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="comment">// * merge agg of phase 2</span></div> |
| <div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  partitionExprs = Expr.substituteList(firstPhaseAggInfo.getGroupingExprs(),</div> |
| <div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  firstPhaseAggInfo.getIntermediateSmap(), ctx_.getRootAnalyzer(), <span class="keyword">false</span>);</div> |
| <div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  }</div> |
| <div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a> mergePartition =</div> |
| <div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>(TPartitionType.HASH_PARTITIONED, partitionExprs);</div> |
| <div class="line"><a name="l00786"></a><span class="lineno"> 786</span> </div> |
| <div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="comment">// place a merge aggregation step for the 1st phase in a new fragment</span></div> |
| <div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> mergeFragment = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(childFragment, mergePartition);</div> |
| <div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AggregateInfo.html">AggregateInfo</a> mergeAggInfo = firstPhaseAggInfo.getMergeAggInfo();</div> |
| <div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a> mergeAggNode =</div> |
| <div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>(), node.getChild(0), mergeAggInfo);</div> |
| <div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  mergeAggNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  mergeAggNode.unsetNeedsFinalize();</div> |
| <div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  mergeAggNode.setIntermediateTuple();</div> |
| <div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  mergeFragment.addPlanRoot(mergeAggNode);</div> |
| <div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="comment">// the 2nd-phase aggregation consumes the output of the merge agg;</span></div> |
| <div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="comment">// if there is a limit, it had already been placed with the 2nd aggregation</span></div> |
| <div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="comment">// step (which is where it should be)</span></div> |
| <div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  mergeFragment.addPlanRoot(node);</div> |
| <div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div> |
| <div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keywordflow">if</span> (!hasGrouping) {</div> |
| <div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="comment">// place the merge aggregation of the 2nd phase in an unpartitioned fragment;</span></div> |
| <div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="comment">// add preceding merge fragment at end</span></div> |
| <div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  fragments.add(mergeFragment);</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>  node.unsetNeedsFinalize();</div> |
| <div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  node.setIntermediateTuple();</div> |
| <div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="comment">// Any limit should be placed in the final merge aggregation node</span></div> |
| <div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keywordtype">long</span> limit = node.getLimit();</div> |
| <div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  node.unsetLimit();</div> |
| <div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  mergeFragment = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(mergeFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  mergeAggInfo = node.getAggInfo().getMergeAggInfo();</div> |
| <div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  mergeAggNode =</div> |
| <div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <span class="keyword">new</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">AggregationNode</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">getNextNodeId</a>(), node.getChild(0), mergeAggInfo);</div> |
| <div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  mergeAggNode.init(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="comment">// Transfer having predicates. If hasGrouping == true, the predicates should</span></div> |
| <div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="comment">// instead be evaluated by the 2nd phase agg (the predicates are already there).</span></div> |
| <div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  node.transferConjuncts(mergeAggNode);</div> |
| <div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  mergeAggNode.setLimit(limit);</div> |
| <div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  mergeFragment.addPlanRoot(mergeAggNode);</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>  <span class="keywordflow">return</span> mergeFragment;</div> |
| <div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  }</div> |
| <div class="line"><a name="l00824"></a><span class="lineno"> 824</span> </div> |
| <div class="line"><a name="l00832"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9d6b0d31877556042459aa46be51be5d"> 832</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9d6b0d31877556042459aa46be51be5d">createAnalyticFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">PlanNode</a> node,</div> |
| <div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  Preconditions.checkState(</div> |
| <div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  node instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a> || node instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html">AnalyticEvalNode</a>);</div> |
| <div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <span class="keywordflow">if</span> (node instanceof <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html">AnalyticEvalNode</a>) {</div> |
| <div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  AnalyticEvalNode analyticNode = (AnalyticEvalNode) node;</div> |
| <div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="keywordflow">if</span> (analyticNode.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html#a46741f8a07bacc2b25e78c3651427e19">getPartitionExprs</a>().isEmpty()</div> |
| <div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  && analyticNode.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html#a64f6f3c358c22cc871f4fffc414394a3">getOrderByElements</a>().isEmpty()) {</div> |
| <div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <span class="comment">// no Partition-By/Order-By exprs: compute analytic exprs in single</span></div> |
| <div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  <span class="comment">// unpartitioned fragment</span></div> |
| <div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> fragment = childFragment;</div> |
| <div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="keywordflow">if</span> (childFragment.isPartitioned()) {</div> |
| <div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  fragment = <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(childFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  }</div> |
| <div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  fragment.addPlanRoot(analyticNode);</div> |
| <div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="keywordflow">return</span> fragment;</div> |
| <div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  childFragment.addPlanRoot(analyticNode);</div> |
| <div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="keywordflow">return</span> childFragment;</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>  }</div> |
| <div class="line"><a name="l00854"></a><span class="lineno"> 854</span> </div> |
| <div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a> sortNode = (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a>) node;</div> |
| <div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  Preconditions.checkState(sortNode.isAnalyticSort());</div> |
| <div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> analyticFragment = childFragment;</div> |
| <div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  <span class="keywordflow">if</span> (sortNode.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html#acd2087f126598974ee249c0ec7645c89">getInputPartition</a>() != null) {</div> |
| <div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="comment">// make sure the childFragment's output is partitioned as required by the sortNode</span></div> |
| <div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  sortNode.getInputPartition().substitute(</div> |
| <div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  childFragment.getPlanRoot().getOutputSmap(), <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">ctx_</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#aab2a670e79a11c07a6b4f130a7351265">getRootAnalyzer</a>());</div> |
| <div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <span class="keywordflow">if</span> (!childFragment.getDataPartition().equals(sortNode.getInputPartition())) {</div> |
| <div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  analyticFragment =</div> |
| <div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(childFragment, sortNode.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html#acd2087f126598974ee249c0ec7645c89">getInputPartition</a>());</div> |
| <div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  }</div> |
| <div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  }</div> |
| <div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  analyticFragment.addPlanRoot(sortNode);</div> |
| <div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="keywordflow">return</span> analyticFragment;</div> |
| <div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  }</div> |
| <div class="line"><a name="l00870"></a><span class="lineno"> 870</span> </div> |
| <div class="line"><a name="l00878"></a><span class="lineno"><a class="line" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a5ed26b541807ed01ed76b587f84218a2"> 878</a></span>  <span class="keyword">private</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a5ed26b541807ed01ed76b587f84218a2">createOrderByFragment</a>(<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a> node,</div> |
| <div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> childFragment, ArrayList<PlanFragment> fragments)</div> |
| <div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="keywordflow">throws</span> <a class="code" href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">InternalException</a> {</div> |
| <div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  node.setChild(0, childFragment.getPlanRoot());</div> |
| <div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  childFragment.addPlanRoot(node);</div> |
| <div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  <span class="keywordflow">if</span> (!childFragment.isPartitioned()) <span class="keywordflow">return</span> childFragment;</div> |
| <div class="line"><a name="l00884"></a><span class="lineno"> 884</span> </div> |
| <div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="comment">// Remember original offset and limit.</span></div> |
| <div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  <span class="keywordtype">boolean</span> hasLimit = node.hasLimit();</div> |
| <div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  <span class="keywordtype">long</span> limit = node.getLimit();</div> |
| <div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <span class="keywordtype">long</span> <a class="code" href="partitioning-throughput-test_8cc.html#ad172ecfd5c31c5df6282c2b4bc322bf7">offset</a> = node.getOffset();</div> |
| <div class="line"><a name="l00889"></a><span class="lineno"> 889</span> </div> |
| <div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <span class="comment">// Create a new fragment for a sort-merging exchange.</span></div> |
| <div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">PlanFragment</a> mergeFragment =</div> |
| <div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">createParentFragment</a>(childFragment, <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">DataPartition</a>.<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">UNPARTITIONED</a>);</div> |
| <div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a> exchNode = (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">ExchangeNode</a>) mergeFragment.getPlanRoot();</div> |
| <div class="line"><a name="l00894"></a><span class="lineno"> 894</span> </div> |
| <div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  <span class="comment">// Set limit, offset and merge parameters in the exchange node.</span></div> |
| <div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  exchNode.unsetLimit();</div> |
| <div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  <span class="keywordflow">if</span> (hasLimit) exchNode.setLimit(limit);</div> |
| <div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  exchNode.setMergeInfo(node.getSortInfo(), offset);</div> |
| <div class="line"><a name="l00899"></a><span class="lineno"> 899</span> </div> |
| <div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <span class="comment">// Child nodes should not process the offset. If there is a limit,</span></div> |
| <div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="comment">// the child nodes need only return (offset + limit) rows.</span></div> |
| <div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  <a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a> childSortNode = (<a class="code" href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">SortNode</a>) childFragment.getPlanRoot();</div> |
| <div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  Preconditions.checkState(node == childSortNode);</div> |
| <div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordflow">if</span> (hasLimit) {</div> |
| <div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  childSortNode.unsetLimit();</div> |
| <div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  childSortNode.setLimit(limit + <a class="code" href="partitioning-throughput-test_8cc.html#ad172ecfd5c31c5df6282c2b4bc322bf7">offset</a>);</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>  childSortNode.setOffset(0);</div> |
| <div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  childSortNode.computeStats(ctx_.getRootAnalyzer());</div> |
| <div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  exchNode.computeStats(ctx_.getRootAnalyzer());</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>  <span class="keywordflow">return</span> mergeFragment;</div> |
| <div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  }</div> |
| <div class="line"><a name="l00914"></a><span class="lineno"> 914</span> }</div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a3b24b86b8603a3679c8babbe7ea24357"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b24b86b8603a3679c8babbe7ea24357">com.cloudera.impala.planner.DistributedPlanner.ctx_</a></div><div class="ttdeci">final PlannerContext ctx_</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00045">DistributedPlanner.java:45</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1ScanNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ScanNode.html">com.cloudera.impala.planner.ScanNode</a></div><div class="ttdef"><b>Definition:</b> <a href="ScanNode_8java_source.html#l00032">ScanNode.java:32</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1QueryStmt_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1QueryStmt.html">com.cloudera.impala.analysis.QueryStmt</a></div><div class="ttdef"><b>Definition:</b> <a href="QueryStmt_8java_source.html#l00041">QueryStmt.java:41</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode_html_a46741f8a07bacc2b25e78c3651427e19"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html#a46741f8a07bacc2b25e78c3651427e19">com.cloudera.impala.planner.AnalyticEvalNode.getPartitionExprs</a></div><div class="ttdeci">List< Expr > getPartitionExprs()</div><div class="ttdef"><b>Definition:</b> <a href="AnalyticEvalNode_8java_source.html#l00107">AnalyticEvalNode.java:107</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a7d54589bfe476b908d7e0e21f67bce1a"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7d54589bfe476b908d7e0e21f67bce1a">com.cloudera.impala.planner.DistributedPlanner.createCrossJoinFragment</a></div><div class="ttdeci">PlanFragment createCrossJoinFragment(CrossJoinNode node, PlanFragment rightChildFragment, PlanFragment leftChildFragment, long perNodeMemLimit, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00273">DistributedPlanner.java:273</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html">com.cloudera.impala.planner.DistributedPlanner</a></div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00042">DistributedPlanner.java:42</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1HashJoinNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1HashJoinNode.html">com.cloudera.impala.planner.HashJoinNode</a></div><div class="ttdef"><b>Definition:</b> <a href="HashJoinNode_8java_source.html#l00050">HashJoinNode.java:50</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a1fe63b0d1e74142ca82a7e3a1191fe8b"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1fe63b0d1e74142ca82a7e3a1191fe8b">com.cloudera.impala.planner.DistributedPlanner.createInsertFragment</a></div><div class="ttdeci">PlanFragment createInsertFragment(PlanFragment inputFragment, InsertStmt insertStmt, Analyzer analyzer, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00181">DistributedPlanner.java:181</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1CrossJoinNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1CrossJoinNode.html">com.cloudera.impala.planner.CrossJoinNode</a></div><div class="ttdef"><b>Definition:</b> <a href="CrossJoinNode_8java_source.html#l00032">CrossJoinNode.java:32</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html">com.cloudera.impala.planner.PlanFragment</a></div><div class="ttdef"><b>Definition:</b> <a href="PlanFragment_8java_source.html#l00063">PlanFragment.java:63</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a3b5458f6e80bf8f40880960b80ea6906"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a3b5458f6e80bf8f40880960b80ea6906">com.cloudera.impala.planner.DistributedPlanner.createUnionNodeFragment</a></div><div class="ttdeci">PlanFragment createUnionNodeFragment(UnionNode unionNode, ArrayList< PlanFragment > childFragments, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00566">DistributedPlanner.java:566</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition_html_a087a59b75a1c5d168e82041f69a6e32b"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a087a59b75a1c5d168e82041f69a6e32b">com.cloudera.impala.planner.DataPartition.UNPARTITIONED</a></div><div class="ttdeci">static final DataPartition UNPARTITIONED</div><div class="ttdef"><b>Definition:</b> <a href="DataPartition_8java_source.html#l00063">DataPartition.java:63</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a00cf8b02e0e97032b5f97dd220c09b76"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a00cf8b02e0e97032b5f97dd220c09b76">com.cloudera.impala.planner.DistributedPlanner.connectChildFragment</a></div><div class="ttdeci">void connectChildFragment(PlanNode node, int childIdx, PlanFragment childFragment)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00640">DistributedPlanner.java:640</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1common_1_1NotImplementedException_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1common_1_1NotImplementedException.html">com.cloudera.impala.common.NotImplementedException</a></div><div class="ttdef"><b>Definition:</b> <a href="NotImplementedException_8java_source.html#l00021">NotImplementedException.java:21</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode_html_acd2087f126598974ee249c0ec7645c89"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html#acd2087f126598974ee249c0ec7645c89">com.cloudera.impala.planner.SortNode.getInputPartition</a></div><div class="ttdeci">DataPartition getInputPartition()</div><div class="ttdef"><b>Definition:</b> <a href="SortNode_8java_source.html#l00083">SortNode.java:83</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1SelectNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SelectNode.html">com.cloudera.impala.planner.SelectNode</a></div><div class="ttdef"><b>Definition:</b> <a href="SelectNode_8java_source.html#l00033">SelectNode.java:33</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a87d3e1ab5a577b16b0bcb9fe133b6ca5"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a87d3e1ab5a577b16b0bcb9fe133b6ca5">com.cloudera.impala.planner.DistributedPlanner.getNumDistinctValues</a></div><div class="ttdeci">long getNumDistinctValues(List< Expr > exprs)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00163">DistributedPlanner.java:163</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanNode.html">com.cloudera.impala.planner.PlanNode</a></div><div class="ttdef"><b>Definition:</b> <a href="PlanNode_8java_source.html#l00059">PlanNode.java:59</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment_html_ab799c17d7720ffe71f749437b173aca8"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlanFragment.html#ab799c17d7720ffe71f749437b173aca8">com.cloudera.impala.planner.PlanFragment.isPartitioned</a></div><div class="ttdeci">boolean isPartitioned()</div><div class="ttdef"><b>Definition:</b> <a href="PlanFragment_8java_source.html#l00317">PlanFragment.java:317</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode_html_a64f6f3c358c22cc871f4fffc414394a3"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html#a64f6f3c358c22cc871f4fffc414394a3">com.cloudera.impala.planner.AnalyticEvalNode.getOrderByElements</a></div><div class="ttdeci">List< OrderByElement > getOrderByElements()</div><div class="ttdef"><b>Definition:</b> <a href="AnalyticEvalNode_8java_source.html#l00108">AnalyticEvalNode.java:108</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1EmptySetNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1EmptySetNode.html">com.cloudera.impala.planner.EmptySetNode</a></div><div class="ttdef"><b>Definition:</b> <a href="EmptySetNode_8java_source.html#l00030">EmptySetNode.java:30</a></div></div> |
| <div class="ttc" id="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator_html"><div class="ttname"><a href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html">com.cloudera.impala.analysis.JoinOperator</a></div><div class="ttdef"><b>Definition:</b> <a href="JoinOperator_8java_source.html#l00019">JoinOperator.java:19</a></div></div> |
| <div class="ttc" id="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator_html_afb6be8664ecdc718fd06d7fb5d55bf02"><div class="ttname"><a href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html#afb6be8664ecdc718fd06d7fb5d55bf02">com.cloudera.impala.analysis.JoinOperator.FULL_OUTER_JOIN</a></div><div class="ttdeci">FULL_OUTER_JOIN</div><div class="ttdef"><b>Definition:</b> <a href="JoinOperator_8java_source.html#l00027">JoinOperator.java:27</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AnalysisContext_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AnalysisContext.html">com.cloudera.impala.analysis.AnalysisContext</a></div><div class="ttdef"><b>Definition:</b> <a href="AnalysisContext_8java_source.html#l00034">AnalysisContext.java:34</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html">com.cloudera.impala.analysis.Expr</a></div><div class="ttdef"><b>Definition:</b> <a href="Expr_8java_source.html#l00048">Expr.java:48</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1UnionNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1UnionNode.html">com.cloudera.impala.planner.UnionNode</a></div><div class="ttdef"><b>Definition:</b> <a href="UnionNode_8java_source.html#l00043">UnionNode.java:43</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext_html_afb8a50425f6e2d0eeeeaee705274983b"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#afb8a50425f6e2d0eeeeaee705274983b">com.cloudera.impala.planner.PlannerContext.getNextFragmentId</a></div><div class="ttdeci">PlanFragmentId getNextFragmentId()</div><div class="ttdef"><b>Definition:</b> <a href="PlannerContext_8java_source.html#l00064">PlannerContext.java:64</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a9b911a64aba180a32b062de9b140633d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9b911a64aba180a32b062de9b140633d">com.cloudera.impala.planner.DistributedPlanner.getCompatPartition</a></div><div class="ttdeci">DataPartition getCompatPartition(List< Expr > srcJoinExprs, DataPartition srcPartition, List< Expr > joinExprs, Analyzer analyzer)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00537">DistributedPlanner.java:537</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer_html_ad2dc865dbb56517d6eb7996e078c0fb0"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html#ad2dc865dbb56517d6eb7996e078c0fb0">com.cloudera.impala.analysis.Analyzer.equivExprs</a></div><div class="ttdeci">boolean equivExprs(Expr e1, Expr e2)</div><div class="ttdef"><b>Definition:</b> <a href="Analyzer_8java_source.html#l01887">Analyzer.java:1887</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AggregateInfo_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1AggregateInfo.html">com.cloudera.impala.analysis.AggregateInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="AggregateInfo_8java_source.html#l00066">AggregateInfo.java:66</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a0b56ba5fe7af65032f6eaeff57d75803"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a0b56ba5fe7af65032f6eaeff57d75803">com.cloudera.impala.planner.DistributedPlanner.createHashJoinFragment</a></div><div class="ttdeci">PlanFragment createHashJoinFragment(HashJoinNode node, PlanFragment rightChildFragment, PlanFragment leftChildFragment, long perNodeMemLimit, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00294">DistributedPlanner.java:294</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1common_1_1InternalException.html">com.cloudera.impala.common.InternalException</a></div><div class="ttdef"><b>Definition:</b> <a href="InternalException_8java_source.html#l00021">InternalException.java:21</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1InsertStmt_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1InsertStmt.html">com.cloudera.impala.analysis.InsertStmt</a></div><div class="ttdef"><b>Definition:</b> <a href="InsertStmt_8java_source.html#l00046">InsertStmt.java:46</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_aa888002fc1dec5831aef03a801e275d4"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aa888002fc1dec5831aef03a801e275d4">com.cloudera.impala.planner.DistributedPlanner.createScanFragment</a></div><div class="ttdeci">PlanFragment createScanFragment(PlanNode node)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00264">DistributedPlanner.java:264</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext_html_aab2a670e79a11c07a6b4f130a7351265"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#aab2a670e79a11c07a6b4f130a7351265">com.cloudera.impala.planner.PlannerContext.getRootAnalyzer</a></div><div class="ttdeci">Analyzer getRootAnalyzer()</div><div class="ttdef"><b>Definition:</b> <a href="PlannerContext_8java_source.html#l00061">PlannerContext.java:61</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_ac28ca07366b1b4fa6ee4c57c8d278e9e"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ac28ca07366b1b4fa6ee4c57c8d278e9e">com.cloudera.impala.planner.DistributedPlanner.createPlanFragments</a></div><div class="ttdeci">PlanFragment createPlanFragments(PlanNode root, boolean isPartitioned, long perNodeMemLimit, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00093">DistributedPlanner.java:93</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a89f4cb7d901d16507367ae3c29b52b45"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a89f4cb7d901d16507367ae3c29b52b45">com.cloudera.impala.planner.DistributedPlanner.isCompatPartition</a></div><div class="ttdeci">boolean isCompatPartition(DataPartition lhsPartition, DataPartition rhsPartition, List< Expr > lhsJoinExprs, List< Expr > rhsJoinExprs, Analyzer analyzer)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00498">DistributedPlanner.java:498</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Analyzer.html">com.cloudera.impala.analysis.Analyzer</a></div><div class="ttdef"><b>Definition:</b> <a href="Analyzer_8java_source.html#l00105">Analyzer.java:105</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a5ed26b541807ed01ed76b587f84218a2"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a5ed26b541807ed01ed76b587f84218a2">com.cloudera.impala.planner.DistributedPlanner.createOrderByFragment</a></div><div class="ttdeci">PlanFragment createOrderByFragment(SortNode node, PlanFragment childFragment, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00878">DistributedPlanner.java:878</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a1f76d834f9eccc0d8761f4a7f9b18882"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a1f76d834f9eccc0d8761f4a7f9b18882">com.cloudera.impala.planner.DistributedPlanner.createPlanFragments</a></div><div class="ttdeci">ArrayList< PlanFragment > createPlanFragments(PlanNode singleNodePlan)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00062">DistributedPlanner.java:62</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr_html_ad1f6e6b6937b74384474820958e94a43"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html#ad1f6e6b6937b74384474820958e94a43">com.cloudera.impala.analysis.Expr.cloneList</a></div><div class="ttdeci">static< CextendsExpr > ArrayList< C > cloneList(Iterable< C > l)</div><div class="ttdef"><b>Definition:</b> <a href="Expr_8java_source.html#l00798">Expr.java:798</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_aef27fedb2a56aa22aa622a46b347fd1f"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#aef27fedb2a56aa22aa622a46b347fd1f">com.cloudera.impala.planner.DistributedPlanner.createAggregationFragment</a></div><div class="ttdeci">PlanFragment createAggregationFragment(AggregationNode node, PlanFragment childFragment, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00681">DistributedPlanner.java:681</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a7fd6f77bd2009c2c0b11f6c0b10d6004"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a7fd6f77bd2009c2c0b11f6c0b10d6004">com.cloudera.impala.planner.DistributedPlanner.createSelectNodeFragment</a></div><div class="ttdeci">PlanFragment createSelectNodeFragment(SelectNode selectNode, ArrayList< PlanFragment > childFragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00625">DistributedPlanner.java:625</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html">com.cloudera.impala.planner.PlannerContext</a></div><div class="ttdef"><b>Definition:</b> <a href="PlannerContext_8java_source.html#l00028">PlannerContext.java:28</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_ab8c582413ae6a885e84bfae482ba1a84"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#ab8c582413ae6a885e84bfae482ba1a84">com.cloudera.impala.planner.DistributedPlanner.LOG</a></div><div class="ttdeci">static final Logger LOG</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00043">DistributedPlanner.java:43</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext_html_af60cf05e54d6c00065ff1036cdddd62b"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#af60cf05e54d6c00065ff1036cdddd62b">com.cloudera.impala.planner.PlannerContext.getNextNodeId</a></div><div class="ttdeci">PlanNodeId getNextNodeId()</div><div class="ttdef"><b>Definition:</b> <a href="PlannerContext_8java_source.html#l00063">PlannerContext.java:63</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AggregationNode.html">com.cloudera.impala.planner.AggregationNode</a></div><div class="ttdef"><b>Definition:</b> <a href="AggregationNode_8java_source.html#l00045">AggregationNode.java:45</a></div></div> |
| <div class="ttc" id="partitioning-throughput-test_8cc_html_ad172ecfd5c31c5df6282c2b4bc322bf7"><div class="ttname"><a href="partitioning-throughput-test_8cc.html#ad172ecfd5c31c5df6282c2b4bc322bf7">offset</a></div><div class="ttdeci">uint8_t offset[7 *64-sizeof(uint64_t)]</div><div class="ttdef"><b>Definition:</b> <a href="partitioning-throughput-test_8cc_source.html#l00037">partitioning-throughput-test.cc:37</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1AnalyticEvalNode.html">com.cloudera.impala.planner.AnalyticEvalNode</a></div><div class="ttdef"><b>Definition:</b> <a href="AnalyticEvalNode_8java_source.html#l00043">AnalyticEvalNode.java:43</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1ExchangeNode.html">com.cloudera.impala.planner.ExchangeNode</a></div><div class="ttdef"><b>Definition:</b> <a href="ExchangeNode_8java_source.html#l00045">ExchangeNode.java:45</a></div></div> |
| <div class="ttc" id="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator_html_a228a3d9cb07d7db059ffe917442b78a7"><div class="ttname"><a href="enumcom_1_1cloudera_1_1impala_1_1analysis_1_1JoinOperator.html#a228a3d9cb07d7db059ffe917442b78a7">com.cloudera.impala.analysis.JoinOperator.RIGHT_ANTI_JOIN</a></div><div class="ttdeci">RIGHT_ANTI_JOIN</div><div class="ttdef"><b>Definition:</b> <a href="JoinOperator_8java_source.html#l00026">JoinOperator.java:26</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a84c61c45f82c57056d13d7c4df707a58"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84c61c45f82c57056d13d7c4df707a58">com.cloudera.impala.planner.DistributedPlanner.createMergeFragment</a></div><div class="ttdeci">PlanFragment createMergeFragment(PlanFragment inputFragment)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00245">DistributedPlanner.java:245</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext_html_a3031c8d5760b5a1652ca923167bf88da"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1PlannerContext.html#a3031c8d5760b5a1652ca923167bf88da">com.cloudera.impala.planner.PlannerContext.HASH_TBL_SPACE_OVERHEAD</a></div><div class="ttdeci">static final double HASH_TBL_SPACE_OVERHEAD</div><div class="ttdef"><b>Definition:</b> <a href="PlannerContext_8java_source.html#l00031">PlannerContext.java:31</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1SortNode.html">com.cloudera.impala.planner.SortNode</a></div><div class="ttdef"><b>Definition:</b> <a href="SortNode_8java_source.html#l00047">SortNode.java:47</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html">com.cloudera.impala.planner.DataPartition</a></div><div class="ttdef"><b>Definition:</b> <a href="DataPartition_8java_source.html#l00039">DataPartition.java:39</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition_html_a9823fe91d6da0575f6c20180b3cba9eb"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DataPartition.html#a9823fe91d6da0575f6c20180b3cba9eb">com.cloudera.impala.planner.DataPartition.RANDOM</a></div><div class="ttdeci">static final DataPartition RANDOM</div><div class="ttdef"><b>Definition:</b> <a href="DataPartition_8java_source.html#l00066">DataPartition.java:66</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1common_1_1ImpalaException_html"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1common_1_1ImpalaException.html">com.cloudera.impala.common.ImpalaException</a></div><div class="ttdef"><b>Definition:</b> <a href="ImpalaException_8java_source.html#l00022">ImpalaException.java:22</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_af6c34b4d45eb399182575573354eefab"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#af6c34b4d45eb399182575573354eefab">com.cloudera.impala.planner.DistributedPlanner.DistributedPlanner</a></div><div class="ttdeci">DistributedPlanner(PlannerContext ctx)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00047">DistributedPlanner.java:47</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a84292737cda92b09dc53e27b49575799"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a84292737cda92b09dc53e27b49575799">com.cloudera.impala.planner.DistributedPlanner.createParentFragment</a></div><div class="ttdeci">PlanFragment createParentFragment(PlanFragment childFragment, DataPartition parentPartition)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00659">DistributedPlanner.java:659</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner_html_a9d6b0d31877556042459aa46be51be5d"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1planner_1_1DistributedPlanner.html#a9d6b0d31877556042459aa46be51be5d">com.cloudera.impala.planner.DistributedPlanner.createAnalyticFragment</a></div><div class="ttdeci">PlanFragment createAnalyticFragment(PlanNode node, PlanFragment childFragment, ArrayList< PlanFragment > fragments)</div><div class="ttdef"><b>Definition:</b> <a href="DistributedPlanner_8java_source.html#l00832">DistributedPlanner.java:832</a></div></div> |
| <div class="ttc" id="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr_html_a4823dc8b6430c7dcc3de2b41c63d77f1"><div class="ttname"><a href="classcom_1_1cloudera_1_1impala_1_1analysis_1_1Expr.html#a4823dc8b6430c7dcc3de2b41c63d77f1">com.cloudera.impala.analysis.Expr.isSubset</a></div><div class="ttdeci">static< CextendsExpr > boolean isSubset(List< C > l1, List< C > l2)</div><div class="ttdef"><b>Definition:</b> <a href="Expr_8java_source.html#l00606">Expr.java:606</a></div></div> |
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