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From "Adam Gilmore (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2361) Column aliases cannot include dots
Date Tue, 03 Mar 2015 02:17:05 GMT
Adam Gilmore created DRILL-2361:

             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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