[
https://issues.apache.org/jira/browse/CALCITE-7838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mihai Budiu resolved CALCITE-7838.
----------------------------------
Fix Version/s: 1.43.0
Resolution: Fixed
Fixed in
[https://github.com/apache/calcite/commit/6400e14a2daa14259675c6446d3837472d353ce9]
Thank you for the report and fix [~sbroeder]
> HsqldbSqlDialect incorrectly claims to support nested aggregations
> ------------------------------------------------------------------
>
> Key: CALCITE-7838
> URL: https://issues.apache.org/jira/browse/CALCITE-7838
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.42.0
> Reporter: Sean Broeder
> Assignee: Sean Broeder
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.43.0
>
>
> HsqldbSqlDialect incorrectly uses the default true behavior for
> supportsNestedAggregations(), so an aggregate over an expression
> of another aggregate gets pushed down by JDBC adapter.
> HSQLDB itself rejects the pushed down nested aggregation by
> throwing an exception.
> Can be demonstrated with:
> SELECT SUM(m)
> FROM (
> SELECT CAST(SUM(sal) AS DOUBLE) AS m
> FROM scott.emp
> GROUP BY deptno
> );
> This returns
> "java.sql.SQLSyntaxErrorException: user lacks privilege or object not found:
> SAL (org.hsqldb.HsqlException, raised from
> ExpressionColumn.checkColumnsResolved while compiling the statement)"
> The dialect should report that it doesn't support nested aggregations so that
> a wrapped sub-SELECT is generated. Override supportsNestedAggregations() to
> return false so that the
> converter generates a sub-SELECT, similar to how MySQL and
> PostgreSQL are already handled.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
