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Jin Xing commented on CALCITE-3366: ----------------------------------- I closed pr-1468 for now. It's good if someone could take over. > RelDecorrelator supports Union > ------------------------------ > > Key: CALCITE-3366 > URL: https://issues.apache.org/jira/browse/CALCITE-3366 > Project: Calcite > Issue Type: Improvement > Reporter: Jin Xing > Priority: Major > Labels: pull-request-available > Time Spent: 4h 10m > Remaining Estimate: 0h > > This issue proposes to support decorrelation for below sql > {code:java} > SELECT deptno FROM dept where exists > (SELECT 1 FROM emp where sal < 100 and emp.deptno=dept.deptno > union all > SELECT 1 FROM emp where sal > 200 and emp.deptno=dept.deptno){code} > This issue was found when I resolve CALCITE-3363 in > https://github.com/apache/calcite/pull/1466 > I failed to construct an semi-join operator from SQL string. -- This message was sent by Atlassian Jira (v8.3.4#803005)