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https://issues.apache.org/jira/browse/CALCITE-2427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813497#comment-16813497
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Pressenna commented on CALCITE-2427:
------------------------------------
Hi [~julianhyde]
I've checkout the latest master and applied the changes.
For following SQL (from above test case):
{code:sql}
update emp
set empno = (select min(empno) from emp as e where e.deptno = emp.deptno)
{code}
It now generates following RA:
{code}
LogicalTableModify(table=[[CATALOG, SALES, EMP]], operation=[UPDATE],
updateColumnList=[[EMPNO]], sourceExpressionList=[[$0]], flattened=[true])
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4],
SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8], EXPR$0=[$10])
LogicalJoin(condition=[=($7, $9)], joinType=[left])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
LogicalAggregate(group=[{0}], EXPR$0=[MIN($1)])
LogicalProject(DEPTNO=[$7], EMPNO=[$0])
LogicalTableScan(table=[[CATALOG, SALES, EMP]])
{code}
Could you verify the RA ?
> Sub-queries not supported in DML statements
> -------------------------------------------
>
> Key: CALCITE-2427
> URL: https://issues.apache.org/jira/browse/CALCITE-2427
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.14.0, 1.15.0, 1.16.0
> Reporter: Pressenna
> Priority: Major
> Labels: sub-query
>
> It appears that subqueries are not supported in DML statements.
> The yield in a NPE.
> Respective
> [testcase|https://github.com/apache/calcite/blob/be3048300e140c5e9e5b4d23c0b27accd0af4c4d/core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java#L1986]
> is disabled with reference to CALCITE-1527.
> {code:java}
> @Ignore("CALCITE-1527")
> @Test public void testUpdateSubQuery() {
> final String sql = "update emp\n"
> + "set empno = (\n"
> + " select min(empno) from emp as e where e.deptno = emp.deptno)";
> sql(sql).ok();
> }
> {code}
>
>
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