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Posted to dev@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2019/10/23 00:42:00 UTC
[jira] [Created] (CALCITE-3438) Validator should disallow use of
the GROUPING function inside a FILTER clause
Julian Hyde created CALCITE-3438:
------------------------------------
Summary: Validator should disallow use of the GROUPING function inside a FILTER clause
Key: CALCITE-3438
URL: https://issues.apache.org/jira/browse/CALCITE-3438
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Validator should disallow use of GROUPING inside FILTER. For instance, the following query should be invalid (you can paste it into {{agg.iq}} followed by '!ok'):
{code}
select deptno, sum(sal) filter (where grouping(deptno) = 0)
from "scott".emp
group by deptno;
{code}
but fails with an internal error:
{noformat}
java.sql.SQLException: Error while executing SQL "select deptno, sum(sal) filter (where grouping(deptno) = 0)
from "scott".emp
group by deptno": cannot translate call GROUPING($t7)
at org.apache.calcite.avatica.Helper.createException(Helper.java:56)
...
Caused by: java.lang.RuntimeException: cannot translate call GROUPING($t7)
at org.apache.calcite.adapter.enumerable.RexToLixTranslator.translateCall(RexToLixTranslator.java:756)
at org.apache.calcite.adapter.enumerable.RexToLixTranslator.translate0(RexToLixTranslator.java:730)
...
{noformat}
If you change "grouping" to "sum" the validator correctly gives the error "FILTER must not contain aggregate expression".
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