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https://issues.apache.org/jira/browse/HIVE-28830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryu Kobayashi resolved HIVE-28830.
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Fix Version/s: 4.1.0
Resolution: Fixed
> Fix HIVE-25043 Support custom UDF in Vectorized mode
> ----------------------------------------------------
>
> Key: HIVE-28830
> URL: https://issues.apache.org/jira/browse/HIVE-28830
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Ryu Kobayashi
> Assignee: Ryu Kobayashi
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
> Attachments: explain1.txt, explain2.txt, explain3.txt, query.sql
>
>
> I previously created HIVE-25043, and it was merged, but it turns out this is
> not working.
> *
> [https://github.com/apache/hive/blob/rel/release-4.0.1/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java#L1439-L1445]
> *
> [https://github.com/apache/hive/blob/rel/release-4.0.1/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java#L1461-L1469]
> As mentioned in the comments, it will not be effective even if I register a
> custom UDF for vectorize here. I created a custom UDF called TIME_PARSE and
> ran the [^query.sql], and the results changed to the following:
> * Default:
> ** Enable vectorized: Map 1, Map 3, Map 8, Map 9 -> [^explain1.txt]
> * Current implementation:
> ** Enable vectorized: Map 1, Map 3, Map 8, Map 9 -> [^explain2.txt]
> * New PR:
> ** Enable vectorized: Map 1, Map 3, Map 5, Map 6, Map 8, Map 9, Map 11, Map
> 12 -> [^explain3.txt]
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