[CALCITE-3751] JDBC adapter wrongly pushes ORDER BY into sub-query

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.22.0
• Component/s: jdbc-adapter
• Assignee: Julian Hyde
• Reporter: Julian Hyde
• Created: 21/Jan/20 05:35
• Updated: 06/Mar/20 04:34
• Resolved: 30/Jan/20 01:12

Description

JDBC adapter wrongly pushes ORDER BY into sub-query. When I run

select deptno, job, sum(sal)
from scott.emp
group by deptno, job
order by 1,2;

against the hsqldb database via the JDBC adapter I get the error

Error: Error while executing SQL "select deptno, job, sum(sal) from scott.emp group by deptno, job order by 1,2": While executing SQL [SELECT "DEPTNO", "JOB", SUM("SAL")
FROM (SELECT "JOB", "DEPTNO", SUM("SAL")
FROM "SCOTT"."EMP"
GROUP BY "JOB", "DEPTNO"
ORDER BY "DEPTNO" NULLS LAST, "JOB" NULLS LAST) AS "t0"] on JDBC sub-schema (state=,code=0)
Caused by: java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: SAL
 at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
 at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)

Note that ORDER BY is inside a sub-query, which I presume is invalid SQL for hsqldb (and most other DBs).

Issue Links

• is related to: CALCITE-3621 JDBC adapter can't push down sort to DB