I am experiencing a strange issue with the GROUP_CONCAT function in my instance, where using it to group together integers works just fine, but applying it to a varchar doesn't work at all.
The data is along the lines of:
CUSTOMERID LOCATIONNAME PRODUCTID UNITS ID PRODUCTNAME
1 Location 65 100 1 Product 65
1 Location 66 100 2 Product 66
1 Location 67 100 3 Product 67
1 Location 68 100 4 Product 68
1 Location 68 100 5 Product 68
When I run: SELECT GROUP_CONCAT(DISTINCT lm.ProductID) as Brand FROM locationMap lm WHERE (lm.CustomerID = 1);
It returns 65, 66, 67, 68 and works properly.
When I run: SELECT GROUP_CONCAT(DISTINCT lm.ProductName) as Brand FROM locationMap lm WHERE (lm.CustomerID = 1);
It returns only the first item (Product 65).
I set up an SQL Fiddle ( http://www.sqlfiddle.com/#!2/2392f/3 ) to test it out, and everything functions properly there. Can anyone offer a suggestion for what might be wrong in my environment that would cause this? I'm running 5.5.30-MariaDB-30.1
Verified that upgrading the server from 5.5.30-MariaDB-30.1 to 5.5.38-MariaDB-35.2 has resolved this issue. Thanks to everyone for their suggestions.
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