caicancai commented on code in PR #3706:
URL: https://github.com/apache/calcite/pull/3706#discussion_r1503698681
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -6268,6 +6268,18 @@ void checkRegexpExtract(SqlOperatorFixture f0,
FunctionAlias functionAlias) {
f.checkScalar("rand_integer(2, 11)", 1, "INTEGER NOT NULL");
}
+ /** Test case for <a
href="https://issues.apache.org/jira/browse/CALCITE-6283";>
+ * [CALCITE-6283] Function array_append with a NULL array argument crashes
with
+ * NullPointerException</a>. */
+ @Test void testArrayNullFunc() {
+ final SqlOperatorFixture f = fixture().withLibrary(SqlLibrary.SPARK);
+ f.checkNull("array_append(null, 2)");
+ f.checkNull("array_prepend(null, 2)");
+ f.checkNull("array_remove(null, 2)");
+ f.checkNull("array_contains(null, 2)");
Review Comment:
What I mean is that spark3.4 version does not support array_append(null, 1),
it will report an error. Currently, array_append and array_prepend are adapted
for spark in calcite. If spark does not support array_append(null , 1), why do
we need to return null? I am not sure whether higher versions of spark support
it.
I don't know if my opinion is useful, if it is problematic, please ignore
it. thank you.
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