liuyongvs commented on code in PR #3263:
URL: https://github.com/apache/calcite/pull/3263#discussion_r1241145194
##########
testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
##########
@@ -5594,6 +5619,90 @@ private static void checkIf(SqlOperatorFixture f) {
f.checkNull("array_union(cast(null as integer array), cast(null as integer
array))");
}
+ /** Tests {@code ARRAYS_OVERLAP} function from Spark. */
+ @Test void testArraysOverlapFunc() {
+ final SqlOperatorFixture f0 = fixture();
+ f0.setFor(SqlLibraryOperators.ARRAYS_OVERLAP);
+ f0.checkFails("^arrays_overlap(array[1, 2], array[2])^",
+ "No match found for function signature ARRAYS_OVERLAP\\("
+ + "<INTEGER ARRAY>, <INTEGER ARRAY>\\)", false);
+
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.SPARK);
+ f.checkScalar("arrays_overlap(array[1, 2], array[2])", true,
+ "BOOLEAN NOT NULL");
+ f.checkScalar("arrays_overlap(array[1, 2], array[3])", false,
+ "BOOLEAN NOT NULL");
+ f.checkScalar("arrays_overlap(array[1, null], array[1])", true,
Review Comment:
@NobiGo can not.
IS NOT NULL just judge whether the value is null
```
for example arrays_overlap(array[1, null], array[1]) is true, so it is
not null. then the result arrays_overlap(array[1, null], array[1]) IS NOT NULL
is true
```
while the nullable is a constraint, just for whether it can store not
null/null value.
the semantic is different
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