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Posted to issues@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2018/08/05 03:38:00 UTC
[jira] [Assigned] (HIVE-20315) Vectorization: Fix more NULL / Wrong
Results issues and avoid unnecessary casts/conversions
[ https://issues.apache.org/jira/browse/HIVE-20315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt McCline reassigned HIVE-20315:
-----------------------------------
> 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
>
> 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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