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https://issues.apache.org/jira/browse/DRILL-7414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16955993#comment-16955993
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ASF GitHub Bot commented on DRILL-7414:
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arina-ielchiieva commented on issue #1878: DRILL-7414: EVF incorrectly sets
buffer writer index after rollover
URL: https://github.com/apache/drill/pull/1878#issuecomment-544478701
@paul-rogers mostly looks good, one minor concern about if need to update
the comment after code change.
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> EVF incorrectly sets buffer writer index after rollover
> -------------------------------------------------------
>
> Key: DRILL-7414
> URL: https://issues.apache.org/jira/browse/DRILL-7414
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
>
> A full test run, with vector validation enabled and with the "new" scan
> enabled, revealed the following in {{TestMockPlugin.testSizeLimit()}}:
> {noformat}
> comments_s20000 - VarCharVector: Row count = 838, but value count = 839
> {noformat}
> Adding vector validation to the result set loader overflow tests reveals that
> the problem is in overflow. In
> {{TestResultSetLoaderOverflow.testOverflowWithNullables()}}:
> {noformat}
> a - RepeatedIntVector: Row count = 2952, but value count = 2953
> b - RepeatedVarCharVector: Row count = 2952, but value count = 2953
> b - RepeatedVarCharVector: Vector has 2953 values, but offset vector labels
> 32472 values
> c - RepeatedIntVector: Row count = 2952, but value count = 2953
> d - RepeatedIntVector: Row count = 2952, but value count = 2953
> {noformat}
> The problem is that EVF incorrectly sets the offset buffer writer index after
> a rollover.
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