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https://issues.apache.org/jira/browse/PIG-3461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13791186#comment-13791186
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Aniket Mokashi commented on PIG-3461:
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Yes. Good catch. I moved the optimizer before FilterLogicExpressionSimplifier
to leverage its features. Didn't realize that it would regress in this
scenario. We need to move it down where PartitionFilterOptimizer is applied.
Attaching a patch right now. [~daijy], how should we apply it to 0.12 branch?
> Rewrite PartitionFilterOptimizer to make it work for all the cases
> ------------------------------------------------------------------
>
> Key: PIG-3461
> URL: https://issues.apache.org/jira/browse/PIG-3461
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.11.1
> Reporter: Aniket Mokashi
> Assignee: Aniket Mokashi
> Fix For: 0.12.0
>
> Attachments: PIG-3461-2.patch, PIG-3461-4.patch, PIG-3461-6.patch
>
>
> Current algorithm for Partition Filter pushdown identification fails in
> several corner cases. We need to rewrite its logic so that it works in all
> cases and does the maximum possible filter pushdown.
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