[jira] [Created] (DRILL-3544) Need better error messages when convert_to is given a bad type

["Ted Dunning (JIRA)" <ji...@apache.org>]

Ted Dunning created DRILL-3544:
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             Summary: Need better error messages when convert_to is given a bad type
                 Key: DRILL-3544
                 URL: https://issues.apache.org/jira/browse/DRILL-3544
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Ted Dunning


The first query below fails because I used UTF-8 instead of UTF8.  This should have a decent error message.

{code}
0: jdbc:drill:zk=local> SELECT CONVERT_TO('[ [1, 2], [3, 4], [5]]' ,'UTF-8') AS MYCOL1 FROM sys.version;
Error: SYSTEM ERROR: org.apache.drill.exec.work.foreman.ForemanException: Unexpected exception during fragment initialization: null

[Error Id: 899207da-2338-4b09-bdc8-8e12e320b661 on 172.16.0.61:31010] (state=,code=0)
0: jdbc:drill:zk=local> SELECT CONVERT_TO('[ [1, 2], [3, 4], [5]]' ,'UTF8') AS MYCOL1 FROM sys.version;
+-------------+
|   MYCOL1    |
+-------------+
| [B@71f3d3a  |
+-------------+
1 row selected (0.108 seconds)
0: jdbc:drill:zk=local> 
{code}



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