danny0405 commented on a change in pull request #1421: [CALCITE-3306] Add
built-in REGEXP_SPLIT_TO_ARRAY function.
URL: https://github.com/apache/calcite/pull/1421#discussion_r326972617
##########
File path:
core/src/test/java/org/apache/calcite/sql/test/SqlOperatorBaseTest.java
##########
@@ -6274,6 +6274,65 @@ private void checkNullOperand(SqlTester tester, String
op) {
tester.checkNull("substring(cast(null as varchar(1)),1,2)");
}
+ @Test public void testRegexpSplitToArrayFunction() {
+ final SqlTester t = tester(SqlLibrary.POSTGRESQL);
+ t.setFor(SqlLibraryOperators.REGEXP_SPLIT_TO_ARRAY);
+ t.checkString(
+ "regexp_split_to_array('','a')",
+ "[]",
Review comment:
Can we also add some tests for implicit type coercion, for example
`regexp_split_to_array(1245, '2')`.
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