[jira] [Updated] (DRILL-1786) Pushdown filter into InfoSchema POJO Record Generator to avoid visiting unnecessary schemas

["Venki Korukanti (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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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