liuyongvs commented on code in PR #3233:
URL: https://github.com/apache/calcite/pull/3233#discussion_r1210185791
##########
testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -5328,6 +5328,25 @@ private static void checkIf(SqlOperatorFixture f) {
f.checkScalar("rand_integer(2, 11)", 1, "INTEGER NOT NULL");
}
+ /** Tests {@code ARRAY_COMPACT} function from Spark. */
+ @Test void testArrayCompactFunc() {
+ final SqlOperatorFixture f0 = Fixtures.forOperators(true);
+ f0.setFor(SqlLibraryOperators.ARRAY_COMPACT);
+ f0.checkFails("^array_compact(array[null, 1, null, 2])^",
+ "No match found for function signature ARRAY_COMPACT\\(<INTEGER
ARRAY>\\)", false);
+
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.SPARK);
+ f.checkScalar("array_compact(array[null, 1, null, 2])", "[1, 2]",
+ "INTEGER ARRAY NOT NULL");
+ f.checkScalar("array_compact(array[null])", "[]",
+ "NULL ARRAY NOT NULL");
+ f.checkScalar("array_compact(array(null))", "[]",
+ "NULL ARRAY NOT NULL");
+ f.checkScalar("array_compact(array())", "[]",
+ "UNKNOWN NOT NULL ARRAY NOT NULL");
+ f.checkNull("array_compact(null)");
+ }
Review Comment:
array() which only supports spark array constructor, while standard not.
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