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https://issues.apache.org/jira/browse/DRILL-5523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017693#comment-16017693
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ASF GitHub Bot commented on DRILL-5523:
---------------------------------------
Github user amansinha100 commented on the issue:
https://github.com/apache/drill/pull/842
+1
> Revert if condition in UnionAllRecordBatch changed in DRILL-5419
> ----------------------------------------------------------------
>
> Key: DRILL-5523
> URL: https://issues.apache.org/jira/browse/DRILL-5523
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.11.0
> Reporter: Arina Ielchiieva
> Assignee: Arina Ielchiieva
> Labels: ready-to-commit
> Fix For: 1.11.0
>
>
> If condition in UnionAllRecordBatch which was changed to correct one in
> DRILL-5419 but this change caused the regression (DRILL-5521).
> The root cause is not in change itself but rather in missing indication of
> child column in map types when it is null. There is a big project upcoming
> re-working json reader implementation, including map types (DRILL-4824) which
> will fix the problem.
> So far reverting change to previous one so users won't see the regression
> till DRILL-4824 is merged.
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