HanumathRao commented on code in PR #3193:
URL: https://github.com/apache/calcite/pull/3193#discussion_r1209076981
##########
core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
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@@ -6823,6 +6823,48 @@ private void checkSemiJoinRuleOnAntiJoin(RelOptRule
rule) {
.checkUnchanged();
}
+ /** Test case for CALCITE-5683 for two level nested decorrelate with
standard program
+ * failing during the decorrelation phase. */
+ @Test void testTwoLevelDecorrelate() {
+ final String sql = "SELECT d1.name, d1.deptno + "
+ + " ( SELECT e1.empno "
+ + " FROM emp e1 "
+ + " WHERE d1.deptno = e1.deptno and "
+ + " e1.sal = (SELECT max(sal) "
+ + " FROM emp e2 "
+ + " WHERE e1.sal = e2.sal and"
+ + " e1.deptno = e2.deptno and"
+ + " d1.deptno < e2.deptno))"
+ + " FROM dept d1";
+
+ sql(sql)
+ .withExpand(false)
+ .withLateDecorrelate(true)
+ .withTrim(true)
+ .withRule()
+ .checkUnchanged();
Review Comment:
OK, thank you for working on it.
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