xuzifu666 commented on code in PR #5386:
URL: https://github.com/apache/calcite/pull/5386#discussion_r4481504920
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core/src/test/java/org/apache/calcite/test/UdfTest.java:
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@@ -666,6 +679,58 @@ private CalciteAssert.AssertThat withUdf() {
.returns("EXPR$0={a: 1, b: null, c: 3, d: null, e: null}\n");
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6018";>[CALCITE-6018]
+ * Support nullable parameters in UDFs</a>.
+ *
+ * <p>Tests that {@code @Parameter(nullable = false)} makes a reference type
+ * parameter non-nullable. */
+ @Test void testNonNullParameter() throws Exception {
Review Comment:
Done. I added a test which asserting the NULL result.
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