tjbanghart commented on code in PR #4544:
URL: https://github.com/apache/calcite/pull/4544#discussion_r2446222807
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core/src/test/java/org/apache/calcite/test/RelBuilderTest.java:
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@@ -5609,6 +5898,55 @@ private static RelNode
buildCorrelateWithJoin(JoinRelType type, RelBuilder build
"empid=150; name=Sebastian");
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-1440";>[CALCITE-1440]
+ * Combine operator - combines multiple SQL queries into a single plan</a>.
*/
+ @Test void testCombineExplain() {
Review Comment:
@xiedeyantu here's a test case that prints out `Combine` via `explain()`. I
think we'll want to add test cases to `RelOptRulesTest.xml` once we have a rule
that can manipulate this operator in some way. I hope this covers what you
wanted to see for the time being.
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