When I run the following on MySql:

```
SELECT * FROM Customers WHERE City LIKE '[acs]%';

```

I get the expected results. 

However, the same query on mariadb returns an empty set. Am I doing something wrong?

I've looked at the docs and it seems like they want it to be more like

```
SELECT * FROM Customers WHERE City RLIKE '(a|c|s)'. 

```

Is there a command that will work on both? Should I use REGEXP?

```
SELECT * FROM Customers WHERE City REGEXP 'a|c|s'

```