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[SPARK-11024][SQL] Optimize NULL in <inlist-expressions> by folding it to Literal(null)
Add a rule in optimizer to convert NULL [NOT] IN (expr1,...,expr2) to Literal(null). This is a follow up defect to SPARK-8654 cloud-fan Can you please take a look ? Author: Dilip Biswal <dbiswal@us.ibm.com> Closes #9348 from dilipbiswal/spark_11024.
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala 5 additions, 0 deletions...a/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
- sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/OptimizeInSuite.scala 50 additions, 1 deletion...apache/spark/sql/catalyst/optimizer/OptimizeInSuite.scala
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