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Posted to dev@drill.apache.org by "Victoria Markman (JIRA)" <ji...@apache.org> on 2015/05/09 02:13:59 UTC
[jira] [Created] (DRILL-3002) Can't plan inequality queries when
scalar subquery has an expression with at least one distinct aggregate
Victoria Markman created DRILL-3002:
---------------------------------------
Summary: Can't plan inequality queries when scalar subquery has an expression with at least one distinct aggregate
Key: DRILL-3002
URL: https://issues.apache.org/jira/browse/DRILL-3002
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 1.0.0
Reporter: Victoria Markman
Assignee: Jinfeng Ni
Fails with mix of of distinct/non distinct scalar aggregates on the same column:
{code}
0: jdbc:drill:schema=dfs> select * from t1 where a1 > ( select count(a2) + count(distinct a2) from t2);
Error: SYSTEM ERROR: This query cannot be planned possibly due to either a cartesian join or an inequality join
[Error Id: 69c0feda-6284-4a76-b1f7-bbc43a099a20 on atsqa4-133.qa.lab:31010] (state=,code=0)
{code}
Works with two distinct aggregates in expression:
{code}
0: jdbc:drill:schema=dfs> select * from t1 where a1 > ( select count(distinct a2) + count(distinct a2) from t2);
+------------+------------+------------+
| a1 | b1 | c1 |
+------------+------------+------------+
+------------+------------+------------+
No rows selected (0.226 seconds)
{code}
Fails with two distinct aggregates on different columns:
{code}
0: jdbc:drill:schema=dfs> select * from t1 where a1 > ( select count(distinct a2) + count(distinct b2) from t2);
Error: SYSTEM ERROR: This query cannot be planned possibly due to either a cartesian join or an inequality join
[Error Id: 80b10ec8-add6-45fd-8f1a-1e68852936a2 on atsqa4-133.qa.lab:31010] (state=,code=0)
0: jdbc:drill:schema=dfs>
{code}
Works with two non distinct scalar aggregates:
{code}
0: jdbc:drill:schema=dfs> select * from t1 where a1 > ( select count(a2) + count(a2) from t2);
+------------+------------+------------+
| a1 | b1 | c1 |
+------------+------------+------------+
+------------+------------+------------+
No rows selected (0.244 seconds)
{code}
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