[jira] [Created] (DRILL-2361) Column aliases cannot include dots

["Adam Gilmore (JIRA)" <ji...@apache.org>]

Adam Gilmore created DRILL-2361:
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             Summary: Column aliases cannot include dots
                 Key: DRILL-2361
                 URL: https://issues.apache.org/jira/browse/DRILL-2361
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Flow
    Affects Versions: 0.7.0, 0.8.0
            Reporter: Adam Gilmore
            Assignee: Chris Westin
            Priority: Minor


The Drill query engine rejects column aliases for aggregates or group by fields where the alias includes a dot.

For example:

{code}select count(*) as `test.field` from cp.`employee.json`;{code}

throws an error with "Field references must be singular names."

Having reviewed the code, I can't quite see a reason for it, and when using FieldReference.getWithQuotedRef instead in AggPrelBase, the issue is alleviated with no visible side effects.

I'm sure there was a reason for this code in FieldReference, but I can't seem to work out why, and it seems entirely reasonable to allow a dot in a column alias.



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