Is there a FIND_IN_SET by index in MySQL?

Question

I know storing lists as strings is not wise, but I have to deal with that to export some data stored that way. I also know the FIND_IN_SET function, which returns the index of a certain string in a list:

SELECT FIND_IN_SET('bar', 'foo,bar,baz');
-- selects 2

Is there any built-in function (or combination of functions) to get the string in a particular index of the list? I'm looking for something like this:

SELECT IN_SET_AT_INDEX(2, 'foo,bar,baz');
-- selects 'bar'

I'd like to avoid a split-like function that makes the list a separate table, if possible.

Answer 1

SUBSTRING_INDEX() can do this, sort of:

mysql> SELECT SUBSTRING_INDEX(SUBSTRING_INDEX('foo,bar,baz', ',', 2), ',', -1) AS middle_one;
+------------+
| middle_one |
+------------+
| bar        |
+------------+