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https://issues.apache.org/jira/browse/HIVE-20315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt McCline updated HIVE-20315:
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Status: Patch Available (was: In Progress)
> 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
> Priority: Critical
> Attachments: HIVE-20315.01.patch, HIVE-20315.02.patch,
> HIVE-20315.03.patch, HIVE-20315.04.patch, HIVE-20315.05.patch,
> HIVE-20315.06.patch, HIVE-20315.07.patch
>
>
> 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.
> Add test for vectorized STRUCT field reference.
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