Steven Phillips created DRILL-873:
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Summary: 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: Bug
Reporter: Steven Phillips
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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