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https://issues.apache.org/jira/browse/PIG-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709606#action_12709606
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Olga Natkovich commented on PIG-777:
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right, sorry, missed that
> Code refactoring: Create optimization out of store/load post processing code
> ----------------------------------------------------------------------------
>
> Key: PIG-777
> URL: https://issues.apache.org/jira/browse/PIG-777
> Project: Pig
> Issue Type: Improvement
> Reporter: Gunther Hagleitner
> Attachments: log_message.patch
>
>
> The postProcessing method in the pig server checks whether a logical graph
> contains stores to and loads from the same location. If so, it will either
> connect the store and load, or optimize by throwing out the load and
> connecting the store predecessor with the successor of the load.
> Ideally the introduction of the store and load connection should happen in
> the query compiler, while the optimization should then happen in an separate
> optimizer step as part of the optimizer framework.
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