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https://issues.apache.org/jira/browse/HIVE-27583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhihua Deng reassigned HIVE-27583:
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Assignee: Zhihua Deng
> Get the meta of query with limit 0 in JDBC storage handler
> ----------------------------------------------------------
>
> Key: HIVE-27583
> URL: https://issues.apache.org/jira/browse/HIVE-27583
> Project: Hive
> Issue Type: Improvement
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Major
>
> Following the discussion on HIVE-27487, In general the JDBC storage handler
> adds limit 1 to the query in order to fetch the metadata, say the column
> names and its types. This jira is trying to explore if we can add "limit 0"
> to the query as we don't care about the records returned, and confirm that
> the predicate is pushed down to the storage, this will reduce the overhead of
> executing the query.
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