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Posted to dev@hive.apache.org by "slim bouguerra (JIRA)" <ji...@apache.org> on 2018/05/18 23:05:00 UTC

[jira] [Created] (HIVE-19615) Proper handling of is null and not is null predicate when pushed to Druid

slim bouguerra created HIVE-19615:
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             Summary: Proper handling of is null and not is null predicate when pushed to Druid
                 Key: HIVE-19615
                 URL: https://issues.apache.org/jira/browse/HIVE-19615
             Project: Hive
          Issue Type: Bug
            Reporter: slim bouguerra
            Assignee: slim bouguerra
             Fix For: 3.0.0


Recent development in Druid introduced new semantic of null handling [here|https://github.com/b-slim/druid/commit/219e77aeac9b07dc20dd9ab2dd537f3f17498346]

Based on those changes when need to honer push down of expressions with is null/ is not null predicates.
The prosed fix overrides the mapping of Calcite Function to Druid Expression to much the correct semantic.





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