xuzifu666 commented on code in PR #4463:
URL: https://github.com/apache/calcite/pull/4463#discussion_r2193774391
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core/src/test/java/org/apache/calcite/test/SqlToRelConverterTest.java:
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@@ -3129,6 +3134,50 @@ void checkCorrelatedMapSubQuery(boolean expand) {
assertThat(rels.get(0), instanceOf(LogicalRepeatUnion.class));
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-CALCITE-7090";>[CALCITE-CALCITE-7090]
+ * Support LogicalRepeatUnion in RelHomogeneousShuttle</a>. */
+ @Test void testRelHomogeneousShuttleForLogicalRepeatUnion() {
+ final String sql = "WITH RECURSIVE delta(n) AS (\n"
+ + "VALUES (1)\n"
+ + "UNION ALL\n"
+ + "SELECT n+1 FROM delta WHERE n < 10\n"
+ + ")\n"
+ + "SELECT * FROM delta";
+ final RelNode rel = sql(sql).toRel();
+ final List<RelNode> rels = new ArrayList<>();
+ // RelHomogeneousShuttle delegates all calls to visit(RelNode)
+
Review Comment:
This blank line is a bit strange, you can delete it.
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