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https://issues.apache.org/jira/browse/DRILL-1786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Venki Korukanti updated DRILL-1786:
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Summary: Pushdown filter into InfoSchema POJO Record Generator to avoid
visiting unnecessary schemas (was: Query "Show Tables" runs through all
storage plugins even if a schema is specified)
> Pushdown filter into InfoSchema POJO Record Generator to avoid visiting
> unnecessary schemas
> -------------------------------------------------------------------------------------------
>
> Key: DRILL-1786
> URL: https://issues.apache.org/jira/browse/DRILL-1786
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Flow
> Reporter: Sean Hsuan-Yi Chu
> Assignee: Venki Korukanti
>
> After a schema is chosen, we can query the table list in the specified schema
> by "show tables".
> However, I noticed the method "getTableNames()" in every storage-plugin is
> called through the life-cycle of this query. This seems not necessary.
> Especially, when you have an unresponsive data source (DRILL-1343), the query
> result would not be returned even if you type "show tables" under a healthy
> data source
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