liuyongvs commented on code in PR #3198:
URL: https://github.com/apache/calcite/pull/3198#discussion_r1193149972
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testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
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@@ -5349,6 +5368,21 @@ private static void checkIf(SqlOperatorFixture f) {
"INTEGER ARRAY NOT NULL");
}
+ /** Tests {@code ARRAY_SIZE} function from Spark. */
+ @Test void testArraySizeFunc() {
+ final SqlOperatorFixture f0 = fixture();
+ f0.setFor(SqlLibraryOperators.ARRAY_SIZE);
+ f0.checkFails("^array_size(array[1])^",
+ "No match found for function signature ARRAY_SIZE\\(<INTEGER
ARRAY>\\)", false);
+
+ final SqlOperatorFixture f = f0.withLibrary(SqlLibrary.SPARK);
+ f.checkScalar("array_size(array[1])", "1",
Review Comment:
array type and element type is different.
array type nullable which indicates wether it is nullable, the value is null
element type nullable which indicates wether the element is nullable, the
value is [null, ...] like this
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