0
date | text | link_id
------------+-------+----------
05-10-2014 | lorem | 2
06-10-2014 | lorem | 4
05-10-2014 | lorem | 4
05-10-2014 | lorem | 5
05-10-2014 | lorem | 5
05-10-2014 | lorem | 5
05-10-2014 | lorem | 5
05-10-2014 | lorem | 5
05-10-2014 | lorem | 6
05-10-2014 | lorem | 4
一个表,我需要从我行此结果
date | text | link_id | value
------------+-------+----------+-------
05-10-2014 | lorem | 2 | 1
06-10-2014 | lorem | 4 | 3
05-10-2014 | lorem | 5 | 6
为什么,如果我使用函数获取组的计数
COUNT(DISTINCT n)
或仅
COUNT()
它总是强迫我所有SELECT
语句添加到GROUP
,我只有1个鲜明排