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https://issues.apache.org/jira/browse/DRILL-6373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16551014#comment-16551014
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ASF GitHub Bot commented on DRILL-6373:
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vrozov commented on issue #1244: DRILL-6373: Refactor Result Set Loader for
Union, List support
URL: https://github.com/apache/drill/pull/1244#issuecomment-406668760
@paul-rogers I disagree that the bug was introduced in the prior changes to
this PR. The bug is already part of `AbstractMapVector` that clones
MaterializedField but modifies children of the original `MaterializedField` and
not the clone. In combination with changes to `NullableVarCharVector` it
triggered functional test failures.
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> Refactor the Result Set Loader to prepare for Union, List support
> -----------------------------------------------------------------
>
> Key: DRILL-6373
> URL: https://issues.apache.org/jira/browse/DRILL-6373
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.13.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Major
> Attachments: 6373_Functional_Fail_07_13_1300.txt,
> drill-6373-with-6585-fix-functional-failure.txt
>
>
> As the next step in merging the "batch sizing" enhancements, refactor the
> {{ResultSetLoader}} and related classes to prepare for Union and List
> support. This fix follows the refactoring of the column accessors for the
> same purpose. Actual Union and List support is to follow in a separate PR.
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