Voy a contar todas las filas cada día en un mes con un ID de usuario específico (vwr_tid). Todo funciona bien, el resultado se muestra en una tabla, pero una cosa. Un conteo cada día no aparece. Se convierte en [BLOB-xx] en lugar de la cantidad de filas ese día. Aquí está mi código:

SELECT MONTH_v, YEAR_V, 
GROUP_CONCAT(IF(day_v=1, views, null)) AS '1',
GROUP_CONCAT(IF(day_v=2, views, null)) AS '2',
GROUP_CONCAT(IF(day_v=3, views, null)) AS '3',
GROUP_CONCAT(IF(day_v=4, views, null)) AS '4',
GROUP_CONCAT(IF(day_v=5, views, null)) AS '5',
GROUP_CONCAT(IF(day_v=6, views, null)) AS '6',
GROUP_CONCAT(IF(day_v=7, views, null)) AS '7',
GROUP_CONCAT(IF(day_v=8, views, null)) AS '8',
GROUP_CONCAT(IF(day_v=9, views, null)) AS '9',
GROUP_CONCAT(IF(day_v=10, views, null)) AS '10',
GROUP_CONCAT(IF(day_v=11, views, null)) AS '11',
GROUP_CONCAT(IF(day_v=12, views, null)) AS '12',
GROUP_CONCAT(IF(day_v=13, views, null)) AS '13',
GROUP_CONCAT(IF(day_v=14, views, null)) AS '14',
GROUP_CONCAT(IF(day_v=15, views, null)) AS '15',
GROUP_CONCAT(IF(day_v=16, views, null)) AS '16',
GROUP_CONCAT(IF(day_v=17, views, null)) AS '17',
GROUP_CONCAT(IF(day_v=18, views, null)) AS '18',
GROUP_CONCAT(IF(day_v=19, views, null)) AS '19',
GROUP_CONCAT(IF(day_v=20, views, null)) AS '20',
GROUP_CONCAT(IF(day_v=21, views, null)) AS '21',
GROUP_CONCAT(IF(day_v=22, views, null)) AS '22',
GROUP_CONCAT(IF(day_v=23, views, null)) AS '23',
GROUP_CONCAT(IF(day_v=24, views, null)) AS '24',
GROUP_CONCAT(IF(day_v=25, views, null)) AS '25',
GROUP_CONCAT(IF(day_v=26, views, null)) AS '26',
GROUP_CONCAT(IF(day_v=27, views, null)) AS '27',
GROUP_CONCAT(IF(day_v=28, views, null)) AS '28',
GROUP_CONCAT(IF(day_v=29, views, null)) AS '29',
GROUP_CONCAT(IF(day_v=30, views, null)) AS '30',
GROUP_CONCAT(IF(day_v=31, views, null)) AS '31'
FROM
(
 SELECT DAY(vwr_date) AS day_v, 
 MONTH(vwr_date) AS MONTH_v, 
 Year(vwr_date) AS YEAR_V,
 date(vwr_date) AS date_v, 
 count(vwr_id) AS views 
 FROM car_viewer 
 WHERE Year(vwr_date)='2012' AND vwr_tid='18' 
 GROUP BY date_v 
) as viewz
GROUP BY MONTH_v, YEAR_V 
ORDER BY MONTH_v, YEAR_V DESC

El script se actualiza desde @rs:Contar el registro cada día de un mes desde mysql en la tabla html

El resultado.