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https://issues.apache.org/jira/browse/DRILL-6356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471257#comment-16471257
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ASF GitHub Bot commented on DRILL-6356:
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ppadma opened a new pull request #1255: DRILL-6356: batch sizing for union all
URL: https://github.com/apache/drill/pull/1255
union all transfers the complete incoming batches as is. With this change, a
single batch will be split into multiple output batches if needed, based on
batch size. Added support to split and transfer as many rows that fit per
memory budget i.e. as per configured output batch size.
This PR also has fix for
DRILL-6402: Repeated Value Vectors copyFrom methods are not updating the
value count and writer index correctly for values vector.
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> batch sizing for union all
> --------------------------
>
> Key: DRILL-6356
> URL: https://issues.apache.org/jira/browse/DRILL-6356
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Relational Operators
> Affects Versions: 1.13.0
> Reporter: Padma Penumarthy
> Assignee: Padma Penumarthy
> Priority: Major
> Fix For: 1.14.0
>
>
> batch sizing changes for union all operator
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