mihaibudiu commented on code in PR #4431:
URL: https://github.com/apache/calcite/pull/4431#discussion_r2176426421
##########
testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java:
##########
@@ -2545,6 +2545,30 @@ void testCastToBoolean(CastType castType,
SqlOperatorFixture f) {
f.checkNull("cast(null as integer array) || array[1]");
}
+ /** Test case for <a
href="https://issues.apache.org/jira/browse/CALCITE-7063";>
+ * Result type inferred for CONCAT_FUNCTION is incorrect for BINARY
arguments</a>. */
+ @Test void testConcatFuncMysql() {
+ final SqlOperatorFixture f = fixture().withLibrary(SqlLibrary.MYSQL);
+
+ // test for ByteString
+ f.setFor(SqlLibraryOperators.CONCAT_FUNCTION_MYSQL);
+ f.checkString("concat('a', x'61')", "6161", "BINARY(2) NOT NULL");
+ f.checkString("concat('abc', 'bb', 'cc')", "abcbbcc", "VARCHAR(7) NOT
NULL");
+ f.checkString("concat(x'616263',x'62')", "61626362", "BINARY(4) NOT NULL");
+ f.checkString("concat(x'616263','abc')", "616263616263", "BINARY(6) NOT
NULL");
+ f.checkString("concat(x'61',x'62')", "6162", "BINARY(2) NOT NULL");
+ f.checkString("concat(cast(x'61' as binary), cast(x'62' as binary), "
Review Comment:
Do you have an explanation why the other tests pass?
Why can it the type for the other ones and not for this one?
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