The argument range of REGEXP_LIKE is not compatible with MySQL

[YangKeao]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Run SQL SELECT REGEXP_LIKE('π', '\x{03C0}');

2. What did you expect to see? (Required)

mysql> SELECT REGEXP_LIKE('π', '\x{03C0}');
ERROR 3692 (HY000): Incorrect description of a {min,max} interval.

3. What did you see instead (Required)

mysql> SELECT REGEXP_LIKE('π', '\x{03C0}');
+-------------------------------+
| REGEXP_LIKE('π', '\x{03C0}')  |
+-------------------------------+
|                             0 |
+-------------------------------+
1 row in set (0.00 sec)

4. What is your TiDB version? (Required)

[zanmato1984]

/severity moderate