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Posted to issues@drill.apache.org by "Khurram Faraaz (JIRA)" <ji...@apache.org> on 2015/04/04 23:24:33 UTC
[jira] [Created] (DRILL-2694) Correlated subquery can not be
planned
Khurram Faraaz created DRILL-2694:
-------------------------------------
Summary: Correlated subquery can not be planned
Key: DRILL-2694
URL: https://issues.apache.org/jira/browse/DRILL-2694
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 0.9.0
Environment: 9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580: Exit early from HashJoinBatch if build side is empty | 26.03.2015 @ 16:13:53 EDT
Reporter: Khurram Faraaz
Assignee: Jinfeng Ni
Correlated subquery can not be planned. Test was run on 4 node cluster on CentOS. Please note that Physical plan tab and Visualized plan tabs were empty for the below query.
{code}
0: jdbc:drill:> select * from `allTypData.csv` t1 where t1.columns[0] > (select min(columns[0]) from `allTypData2.csv` t2);
Query failed: UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
Error: exception while executing query: Failure while executing query. (state=,code=0)
Table in outer query has 295 rows.
0: jdbc:drill:> select count(*) from `allTypData.csv`;
+------------+
| EXPR$0 |
+------------+
| 295 |
+------------+
1 row selected (0.082 seconds)
Table in inner query has 999 rows.
0: jdbc:drill:> select count(*) from `allTypData2.csv`;
+------------+
| EXPR$0 |
+------------+
| 999 |
+------------+
1 row selected (0.083 seconds)
sub query is,
0: jdbc:drill:> select min(columns[0]) from `allTypData2.csv`;
+------------+
| EXPR$0 |
+------------+
| -1000041497 |
+------------+
1 row selected (0.097 seconds)
Note that when we replace the sub-query with the value that the sub-query returns, the original query returns results. It fails only when there is correlated subquery.
select * from `allTypData.csv` t1 where t1.columns[0] > -1000041497;
+------------+
| columns |
+------------+
...
+------------+
214 rows selected (0.162 seconds)
0: jdbc:drill:> explain plan for select * from `allTypData.csv` t1 where t1.columns[0] > (select min(columns[0]) from `allTypData2.csv` t2);
Query failed: UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}
Stack trace from drillbit.log
{code}
2015-04-04 21:12:40,687 [2adfac37-037b-c692-31b1-41d8004d9b13:foreman] INFO o.a.drill.exec.work.foreman.Foreman - State change requested. PENDING --> FAILED
org.apache.drill.exec.work.foreman.UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:217) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:138) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_75]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
2015-04-04 21:12:40,695 [2adfac37-037b-c692-31b1-41d8004d9b13:foreman] INFO o.a.drill.exec.work.foreman.Foreman - foreman cleaning up - status: []
2015-04-04 21:12:40,696 [2adfac37-037b-c692-31b1-41d8004d9b13:foreman] ERROR o.a.drill.exec.work.foreman.Foreman - Error 59dcbb50-d418-400a-9c0c-7331fcb6b344: UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
org.apache.drill.exec.work.foreman.UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:217) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:138) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204) ~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_75]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
{code}
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