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  1. IMPALA
  2. IMPALA-11811

Avoid storing unregistered predicate objects in a Map

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • Impala 4.2.0
    • Impala 4.3.0
    • Frontend
    • None
    • ghx-label-3

    Description

      Within the extractIcebergConjuncts() method we are tracking conjuncts which are identity conjuncts by storing them in a temporary Map.
      The conjuncts are Expr objects which have a hashCode() method based on their id_ field, which is only present when they are registered.
      If the id_ field is null, then the hashCode() will throw, and hence unregistered predicates cannot be stored in a Map.
      This can happen if the conjuncts are bound predicates (produced by getBoundPredicates()) which are explicitly not registered.

      Change extractIcebergConjuncts() to track the identity conjuncts in another way, perhaps using a boolean array which tracks the index of the identity conjuncts in conjuncts_ List.

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            asherman Andrew Sherman
            asherman Andrew Sherman
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              Created:
              Updated:
              Resolved: