表结构及数据

select logdatetime,sum(login) as login,sum(logo) as logo

from(
SELECT date(logdatetime) AS "logdatetime",case logfrom when 'login' then COUNT(id) else 0 end AS "login",
case logfrom when 'logo' then COUNT(id) else 0 end AS "logo"
FROM "log" WHERE date(logdatetime) >= '2014-11-04' AND date(logdatetime) <= '2014-11-05' GROUP BY "logdatetime","logfrom"
) T
GROUP BY "logdatetime"

ORDER BY "logdatetime" ASC

执行结果

原文链接：https://www.f2er.com/postgresql/195534.html