[jira] [Created] (IMPALA-11811) Avoid storing unregistered predicate objects in a Map

["Andrew Sherman (Jira)" <ji...@apache.org>]

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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