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Posted to issues@drill.apache.org by "Aman Sinha (JIRA)" <ji...@apache.org> on 2015/05/09 02:25:00 UTC
[jira] [Assigned] (DRILL-3002) Can't plan inequality queries when
scalar subquery has an expression with at least one distinct aggregate
[ https://issues.apache.org/jira/browse/DRILL-3002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aman Sinha reassigned DRILL-3002:
---------------------------------
Assignee: Aman Sinha (was: Jinfeng Ni)
> 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: Aman Sinha
>
> 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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