xiedeyantu commented on code in PR #4371:
URL: https://github.com/apache/calcite/pull/4371#discussion_r2097562124
##########
core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
##########
@@ -354,6 +354,72 @@ private static boolean skipItem(RexNode expr) {
.check();
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6887";>[CALCITE-6887]
+ * ReduceExpressionsRule applied to 'IN subquery' should make the values
distinct
+ * if the subquery is a constant Values</a>. */
+ @Test void testAggregateValuesRuleWithInRepeatingValues() {
+ final String sql = "SELECT deptno, sal "
+ + "FROM EMP "
+ + "WHERE deptno IN (1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)";
+ sql(sql)
+ .withPreRule(CoreRules.FILTER_SUB_QUERY_TO_CORRELATE)
+ .withRule(CoreRules.AGGREGATE_VALUES_REDUCE)
+ .check();
+ }
+
+ @Test void testReduceInValuesWithNonOrder() {
Review Comment:
You can just use `testAggregateValuesRuleWithInRepeatingValues` to show this
logic.
##########
core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
##########
@@ -354,6 +354,72 @@ private static boolean skipItem(RexNode expr) {
.check();
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6887";>[CALCITE-6887]
+ * ReduceExpressionsRule applied to 'IN subquery' should make the values
distinct
+ * if the subquery is a constant Values</a>. */
+ @Test void testAggregateValuesRuleWithInRepeatingValues() {
+ final String sql = "SELECT deptno, sal "
+ + "FROM EMP "
+ + "WHERE deptno IN (1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)";
+ sql(sql)
+ .withPreRule(CoreRules.FILTER_SUB_QUERY_TO_CORRELATE)
+ .withRule(CoreRules.AGGREGATE_VALUES_REDUCE)
+ .check();
+ }
+
+ @Test void testReduceInValuesWithNonOrder() {
+ final String sql = "SELECT deptno, sal "
+ + "FROM EMP "
+ + "WHERE deptno IN (1,1,3,1,2)";
+
+ sql(sql)
+ .withPreRule(CoreRules.FILTER_SUB_QUERY_TO_CORRELATE)
+ .withRule(CoreRules.AGGREGATE_VALUES_REDUCE)
+ .checkUnchanged();
+ }
+
+ @Test void testAggregateValuesRuleWithRepeatingValues() {
Review Comment:
Same as above.
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