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https://issues.apache.org/jira/browse/HIVE-16058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980151#comment-15980151
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Vineet Garg commented on HIVE-16058:
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Thanks for working on it [~ashutoshc]! Looks like it found quite a few bugs.
> Disable falling back to non-cbo for SemanticException for tests
> ---------------------------------------------------------------
>
> Key: HIVE-16058
> URL: https://issues.apache.org/jira/browse/HIVE-16058
> Project: Hive
> Issue Type: Task
> Components: Query Planning
> Reporter: Vineet Garg
> Assignee: Vineet Garg
> Fix For: 3.0.0
>
> Attachments: HIVE-16058.1.patch, HIVE-16058.2.patch,
> HIVE-16058.2.patch, HIVE-16058.3.patch
>
>
> Currently optimizer falls back to non-cbo path if cbo path throws an
> exception of type SemanticException. This might be eclipsing some genuine
> issues within cbo-path.
> We would like to turn off the fall back mechanism for tests to see if there
> are indeed genuine issues/bugs within cbo path.
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