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Posted to dev@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2018/08/05 03:38:00 UTC

[jira] [Created] (HIVE-20315) Vectorization: Fix more NULL / Wrong Results issues and avoid unnecessary casts/conversions

Matt McCline created HIVE-20315:
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             Summary: Vectorization: Fix more NULL / Wrong Results issues and avoid unnecessary casts/conversions
                 Key: HIVE-20315
                 URL: https://issues.apache.org/jira/browse/HIVE-20315
             Project: Hive
          Issue Type: Bug
          Components: Hive
            Reporter: Matt McCline
            Assignee: Matt McCline


Generate multi-byte Unicode characters in addition to regular single byte characters for random data.
Don't CAST from STRING/VARCHAR/CHAR TO STRING since all are stored in vectorization without padding.
Fix vectorized BETWEEN expression work to avoid unnecessary CAST of DECIMAL constants.
Fix NULL / Wrong Results issues in VectorElt.
Change performance Q files to generate non-user EXPLAIN with VECTORIZATION display so unnecesary CAST / DECIMAL_64 conversions are visible.




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