In phpmyadmin 4.2.2 and 4.0.4, I cannot recreate three column stacked charts as per the documentation: http://wiki.phpmyadmin.net/pma/Charts#Three_columns
SELECT
225 AS 'Amount',
'Tele2' AS 'Operator',
'2009-11' AS 'Month' UNION
SELECT 653, 'Omnitel', '2009-11' UNION
SELECT 1157, 'Tele2', '2009-12' UNION
SELECT 855, 'Omnitel', '2009-12' UNION
SELECT 569, 'Tele2', '2010-01' UNION
SELECT 253, 'Omnitel', '2010-01' UNION
SELECT 282, 'Tele2', '2010-02' UNION
SELECT 455, 'Omnitel', '2010-02' UNION
SELECT 2960, 'Tele2', '2010-03' UNION
SELECT 3552, 'Omnitel', '2010-03'
Is suppose to return this:
However, this is what I get: ("Series" setting, which is obscured in the image below, is set to "Amount")
No possible configuration of Stacked enabled/disabled or X-axis as 'operator' creates the expected result.