xuzifu666 commented on code in PR #4488:
URL: https://github.com/apache/calcite/pull/4488#discussion_r2261768623
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core/src/test/java/org/apache/calcite/test/RexImplicationCheckerTest.java:
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@@ -361,6 +366,59 @@ public class RexImplicationCheckerTest {
hasToString("2014"));
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-7122";>[CALCITE-7122]
+ * Eliminate nested calls for idempotent unary functions
UPPER/LOWER/ABS/INITCAP</a>. */
+ @Test void testSimplifyIdempotentUnaryFunctions() {
Review Comment:
OK, I would add more detail comments for these tests and remove sql tests.
@julianhyde
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