Andrew Sherman created IMPALA-11811:
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Summary: Avoid storing unregistered predicate objects in a Map
Key: IMPALA-11811
URL: https://issues.apache.org/jira/browse/IMPALA-11811
Project: IMPALA
Issue Type: Bug
Components: fe
Affects Versions: Impala 1.4.2
Reporter: Andrew Sherman
Assignee: Andrew Sherman
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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