Davies Liu created SPARK-13658:
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             Summary: BooleanSimplification rule is slow with large boolean 
expressions
                 Key: SPARK-13658
                 URL: https://issues.apache.org/jira/browse/SPARK-13658
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Davies Liu


When run TPCDS Q3 [1] with lots predicates to filter out the partitions, the 
optimizer rule BooleanSimplification take about 2 seconds (it use lots of 
sematicsEqual, which require copy the whole tree).

It will great if we could speedup it.

[1] https://github.com/cloudera/impala-tpcds-kit/blob/master/queries/q3.sql

cc [~marmbrus]



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