[SPARK-2076][SQL] Pushdown the join filter & predication for outer join #1015
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| object PushPredicateThroughInnerJoin extends Rule[LogicalPlan] with PredicateHelper { | ||
| object PushPredicateThroughJoin extends Rule[LogicalPlan] with PredicateHelper { | ||
| // split the condition expression into 3 parts, | ||
| // (canEvaluateInLeft, canEvaluateInRight, haveToEvaluateInBoth) |
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/**
* Splits join condition expressions into three categories based on the attributes required
* to evaluate them.
* @returns (canEvaluateInLeft, canEvaluateInRight, haveToEvaluateInBoth)
*/
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asfgit
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Jun 10, 2014
As the rule described in https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior, we can optimize the SQL Join by pushing down the Join predicate and Where predicate. Author: Cheng Hao <hao.cheng@intel.com> Closes #1015 from chenghao-intel/join_predicate_push_down and squashes the following commits: 10feff9 [Cheng Hao] fix bug of changing the join type in PredicatePushDownThroughJoin 44c6700 [Cheng Hao] Add logical to support pushdown the join filter 0bce426 [Cheng Hao] Pushdown the join filter & predicate for outer join (cherry picked from commit db0c038) Signed-off-by: Michael Armbrust <michael@databricks.com>
pdeyhim
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Jun 25, 2014
As the rule described in https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior, we can optimize the SQL Join by pushing down the Join predicate and Where predicate. Author: Cheng Hao <hao.cheng@intel.com> Closes apache#1015 from chenghao-intel/join_predicate_push_down and squashes the following commits: 10feff9 [Cheng Hao] fix bug of changing the join type in PredicatePushDownThroughJoin 44c6700 [Cheng Hao] Add logical to support pushdown the join filter 0bce426 [Cheng Hao] Pushdown the join filter & predicate for outer join
xiliu82
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Sep 4, 2014
As the rule described in https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior, we can optimize the SQL Join by pushing down the Join predicate and Where predicate. Author: Cheng Hao <hao.cheng@intel.com> Closes apache#1015 from chenghao-intel/join_predicate_push_down and squashes the following commits: 10feff9 [Cheng Hao] fix bug of changing the join type in PredicatePushDownThroughJoin 44c6700 [Cheng Hao] Add logical to support pushdown the join filter 0bce426 [Cheng Hao] Pushdown the join filter & predicate for outer join
wangyum
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May 26, 2023
…rtMaxRowsThreshold (#1015) * Use TakeOrderedAndProject if maxRows below the topKSortMaxRowsThreshold * Fix
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As the rule described in https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior, we can optimize the SQL Join by pushing down the Join predicate and Where predicate.