Wie gleichen wir Werte mit Backslashes in einer MySQL-Spalte ab, beispielsweise „a\\b'?

mysql> select * from backslashes;
+------+-------+
| Id   | Value |
+------+-------+
|    1 | 200   |
|    2 | 300   |
|    4 | a\b  |
|    3 | a\b   |
+------+-------+
4 rows in set (0.10 sec)

mysql> Select * from backslashes where value RLIKE 'a\\\\b';
+------+-------+
| Id   | Value |
+------+-------+
|    4 | a\b  |
+------+-------+
1 row in set (0.00 sec)

mysql> Select * from backslashes where value RLIKE 'a\\b';
+------+-------+
| Id   | Value |
+------+-------+
|    3 | a\b   |
+------+-------+
1 row in set (0.01 sec)