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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2019/05/21 21:20:30 UTC

[GitHub] [calcite] laurentgo opened a new pull request #1226: [CALCITE-2807] RelOptUtil#pushDownJoinConditions and INDF

laurentgo opened a new pull request #1226: [CALCITE-2807] RelOptUtil#pushDownJoinConditions and INDF
URL: https://github.com/apache/calcite/pull/1226
 
 
   RelOptUtil#pushDownJoinConditions do not identify and preserve
   expanded versions of IS NOT DISTINCT FROM expressions, causing
   equi-joins to be miscategorized as inequality joins.
   
   Modify the function to try to collapse the expression back to an
   INDF expression if possible before visiting the expression and pushing
   it below the join.

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