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https://issues.apache.org/jira/browse/FLINK-18346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17355552#comment-17355552
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Jingsong Lee commented on FLINK-18346:
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[~luoyuxia] This Jira aims to supports it.
> Support partition pruning for lookup table source
> -------------------------------------------------
>
> Key: FLINK-18346
> URL: https://issues.apache.org/jira/browse/FLINK-18346
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Jingsong Lee
> Priority: Major
>
> Especially for Filesystem lookup table source, it stores all records in
> memory, if there is partition pruning, for partitioned table, can reduce
> memory effectively for lookup table source.
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