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  1. IMPALA
  2. IMPALA-11770

Review Predicate arguments for impact of CNF rewrites

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • Impala 4.1.0
    • None
    • None
    • None
    • ghx-label-5

    Description

      CNF rewrites can modify predicate children. We've found at least one instance - IMPALA-11766 - where a predicate child expression wasn't cloned, so modification messed up other use of the expression.

      We should review CNF rewrite's impact on predicate child expressions and whether there are other places expressions need to be cloned before passing them in.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-9183 TPC-DS query 13 - customer_address predicates not propagated to scan

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-9620 Predicates in the SELECT and GROUP-BY cause failure with CNF rewrite enabled

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-11274 CNF Rewrite causes a regress in join node performance

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-11766 In HdfsScanNode.buildBinaryStatsPredicate, an Expr needs to be cloned

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              MikaelSmith Michael Smith
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              Dates

                Created:
                Updated: