[jira] [Created] (DRILL-2378) UNION ALL on Aggregates with GROUP BY and ORDER BY fails when column aliases don't match

["Abhishek Girish (JIRA)" <ji...@apache.org>]

Abhishek Girish created DRILL-2378:
--------------------------------------

             Summary: UNION ALL on Aggregates with GROUP BY and ORDER BY fails when column aliases don't match
                 Key: DRILL-2378
                 URL: https://issues.apache.org/jira/browse/DRILL-2378
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 0.8.0
            Reporter: Abhishek Girish
            Assignee: Jinfeng Ni


*The following query fails to execute:*
{code:sql}
select x
from
(SELECT Sum(ss_ext_sales_price) x
FROM  store_sales
UNION ALL
SELECT Sum(cs_ext_sales_price) y
FROM catalog_sales) tmp
GROUP BY x
ORDER BY x;

Error from Drill:
Query failed: RemoteRpcException: Failure while running fragment., Failure while reading vector.  Expected vector class of org.apache.drill.exec.vector.Decimal38SparseVector but was holding vector class org.apache.drill.exec.vector.NullableIntVector. [ 7cc962d6-569b-44f6-9118-d5cc5a9632d9 on abhi7.qa.lab:31010 ]
[ 7cc962d6-569b-44f6-9118-d5cc5a9632d9 on abhi7.qa.lab:31010 ]
java.lang.RuntimeException: java.sql.SQLException: Failure while executing query.
	at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
        ...
{code}

Log snippet attached.
 
*The following query executes fine (although returns incomplete results - see DRILL-2376:*
{code:sql}
select x
from
(SELECT Sum(ss_ext_sales_price) x
FROM  store_sales
UNION ALL
SELECT Sum(cs_ext_sales_price) x
FROM catalog_sales) tmp
GROUP BY x
ORDER BY x;
{code}



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