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https://issues.apache.org/jira/browse/TAJO-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14371312#comment-14371312
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Navis commented on TAJO-1431:
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This is subtask of TAJO-941, which explains the intention fully. Isn't its?
And for the second question, codes in hive does works to change arbitrary
predicates into normalized CNF, which is needed anyway for efficient filter
push down.
I'm just doing copy and paste. propit!
> Port hive SARG (HIVE-4579) to tajo
> ----------------------------------
>
> Key: TAJO-1431
> URL: https://issues.apache.org/jira/browse/TAJO-1431
> Project: Tajo
> Issue Type: Sub-task
> Components: storage
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
>
> It makes common CNF format filter from predicates pushed-down to scan
> operator which can be used for parquet or ORC format.
> see https://issues.apache.org/jira/browse/HIVE-4579
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