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https://issues.apache.org/jira/browse/DRILL-873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacques Nadeau updated DRILL-873:
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Component/s: Metadata
Assignee: Aditya Kishore
> Add an option to fail queries if a requested column is not found after some
> threshold
> -------------------------------------------------------------------------------------
>
> Key: DRILL-873
> URL: https://issues.apache.org/jira/browse/DRILL-873
> Project: Apache Drill
> Issue Type: Improvement
> Components: Metadata
> Reporter: Steven Phillips
> Assignee: Aditya Kishore
>
> An example where this apply is with json, or hbase when selecting a specific
> column qualifier. For these table formats, there is no way to know whether a
> particular column exists unless we scan the entire table. So a requested
> column that does not exist is simply treated as a column of nulls.
> We should allow an option to fail a query if a requested column is not found
> after reading a configurable number of rows. This option will help avoid the
> case where a mistyped column name results in a full table scan with
> unexpected results.
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