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https://issues.apache.org/jira/browse/HIVE-21385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16785857#comment-16785857
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Jesus Camacho Rodriguez commented on HIVE-21385:
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Maybe in addition to having these two global variables, it can make sense to
being able to enable/disable them on a per-table basis setting it in the table
properties. What do you think? I can create a follow-up for that.
> Allow disabling pushdown of non-splittable computation to JDBC sources
> ----------------------------------------------------------------------
>
> Key: HIVE-21385
> URL: https://issues.apache.org/jira/browse/HIVE-21385
> Project: Hive
> Issue Type: Improvement
> Components: CBO, StorageHandler
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-21385.01.patch, HIVE-21385.patch
>
>
> Until pushdown is cost-based decision, we will be able to enable / disable
> pushdown of operators that prevent reading results from the JDBC connection
> in parallel.
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