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[SQL]Extract the joinkeys from join condition
Extract the join keys from equality conditions, that can be evaluated using equi-join. Author: Cheng Hao <hao.cheng@intel.com> Closes #1190 from chenghao-intel/extract_join_keys and squashes the following commits: 4a1060a [Cheng Hao] Fix some of the small issues ceb4924 [Cheng Hao] Remove the redundant pattern of join keys extraction cec34e8 [Cheng Hao] Update the code style issues dcc4584 [Cheng Hao] Extract the joinkeys from join condition
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala 5 additions, 2 deletions...a/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/planning/patterns.scala 22 additions, 40 deletions...ala/org/apache/spark/sql/catalyst/planning/patterns.scala
- sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala 6 additions, 7 deletions...cala/org/apache/spark/sql/execution/SparkStrategies.scala
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