YiwenWu commented on code in PR #3684: URL: https://github.com/apache/calcite/pull/3684#discussion_r1493743503
########## testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java: ########## @@ -2259,6 +2272,27 @@ private static void checkConcatWithSeparatorInMSSQL(SqlOperatorFixture f) { f.checkString("concat_ws('', '', '', '')", "", "VARCHAR(0) NOT NULL"); } + private static void checkConcatWithSeparatorInSpark(SqlOperatorFixture f) { + f.setFor(SqlLibraryOperators.CONCAT_WS_SPARK); + f.checkString("concat_ws(',', 'a')", "a", "VARCHAR(1) NOT NULL"); + f.checkString("concat_ws(',', 'a', 'b', null, 'c')", "a,b,c", + "VARCHAR NOT NULL"); + f.checkString("concat_ws(',', cast('a' as varchar), cast('b' as varchar))", + "a,b", "VARCHAR NOT NULL"); + f.checkString("concat_ws(',', cast('a' as varchar(2)), cast('b' as varchar(1)))", + "a,b", "VARCHAR(4) NOT NULL"); + f.checkString("concat_ws(',', '', '', '')", ",,", "VARCHAR(2) NOT NULL"); + f.checkString("concat_ws(',', null, null, null)", "", "VARCHAR NOT NULL"); + // returns null if the separator is null + f.checkNull("concat_ws(null, 'a', 'b')"); + f.checkNull("concat_ws(null, null, null)"); + f.checkString("concat_ws(',')", "", "VARCHAR(0) NOT NULL"); + // if the separator is empty string, it's equivalent to CONCAT + f.checkString("concat_ws('', cast('a' as varchar(2)), cast('b' as varchar(1)))", + "ab", "VARCHAR(3) NOT NULL"); + f.checkString("concat_ws('', '', '', '')", "", "VARCHAR(0) NOT NULL"); Review Comment: done, add arrays test -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@calcite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org