xuzifu666 commented on code in PR #4242:
URL: https://github.com/apache/calcite/pull/4242#discussion_r1994576559
##########
core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
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@@ -347,6 +347,18 @@ private static boolean skipItem(RexNode expr) {
.check();
}
+ /**
+ * Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6887";>[CALCITE-6887]
+ * In should distinct values with ReduceExpressionRule</a>. */
+ @Test void testReduceExpressionsWithIn() {
+ final String sql = "select deptno, sal "
+ + "from emp "
+ + "where deptno in (1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1) ";
+ sql(sql).withRule(CoreRules.PROJECT_REDUCE_EXPRESSIONS)
Review Comment:
Yes, this is work well because values number in IN lower than 20, would
transform to OR with multiple EQUAL and distinct the values. so I did not add
case about with test it local. @julianhyde
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