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https://issues.apache.org/jira/browse/DRILL-5185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16115068#comment-16115068
]
Jinfeng Ni commented on DRILL-5185:
-----------------------------------
Run against a patch for DRILL-5466. The query, which originally failed, is
completed successfully.
{code}
0: jdbc:drill:zk=local> select t1.l_partkey, t2.o_orderdate from (
. . . . . . . . . . . > select l_orderkey, l_partkey, l_comment from
cp.`tpch/lineitem.parquet` where l_quantity is null
. . . . . . . . . . . > union
. . . . . . . . . . . > select l_orderkey, l_partkey, l_comment from
cp.`tpch/lineitem.parquet` where l_quantity is null
. . . . . . . . . . . > ) as t1,
. . . . . . . . . . . > cp.`tpch/orders.parquet` as t2
. . . . . . . . . . . > where t1.l_comment = t2.o_comment;
+------------+--------------+
| l_partkey | o_orderdate |
+------------+--------------+
+------------+--------------+
No rows selected (1.099 seconds)
{code}
> Union all not passing type info when the output contains 0 rows
> ---------------------------------------------------------------
>
> Key: DRILL-5185
> URL: https://issues.apache.org/jira/browse/DRILL-5185
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators, Query Planning &
> Optimization
> Affects Versions: 1.10.0
> Reporter: Rahul Challapalli
> Assignee: Jinfeng Ni
>
> Version : 1.10.0
> git.commit.id.abbrev=4d4e0c2
> The below query fails without an explicit cast
> {code}
> 0: jdbc:drill:zk=10.10.100.190:5181> select t1.l_partkey, t2.o_orderdate from
> (
> . . . . . . . . . . . . . . . . . .> select l_orderkey, l_partkey, l_comment
> from cp.`tpch/lineitem.parquet` where l_quantity is null
> . . . . . . . . . . . . . . . . . .> union
> . . . . . . . . . . . . . . . . . .> select l_orderkey, l_partkey, l_comment
> from cp.`tpch/lineitem.parquet` where l_quantity is null
> . . . . . . . . . . . . . . . . . .> ) as t1,
> . . . . . . . . . . . . . . . . . .> cp.`tpch/orders.parquet` as t2
> . . . . . . . . . . . . . . . . . .> where t1.l_comment = t2.o_comment;
> Error: SYSTEM ERROR: DrillRuntimeException: Join only supports implicit casts
> between 1. Numeric data
> 2. Varchar, Varbinary data 3. Date, Timestamp data Left type: VARCHAR, Right
> type: INT. Add explicit casts to avoid this error
> Fragment 0:0
> [Error Id: e09bb8ee-cb1c-48bc-9dce-42ace2d4b80b on qa-node190.qa.lab:31010]
> (state=,code=0)
> {code}
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