我的查询如下所示:
SELECT mthreport.*
FROM crosstab
('SELECT
to_char(ipstimestamp, ''mon DD HH24h'') As row_name,
varid::text || log.varid || ''_'' || ips.objectname::text As bucket,
COUNT(*)::integer As bucketvalue
FROM loggingdb_ips_boolean As log
INNER JOIN IpsObjects As ips
ON log.Varid=ips.ObjectId
WHERE ((log.varid = 37551)
OR (log.varid = 27087)
OR (log.varid = 50876)
OR (log.varid = 45096)
OR (log.varid = 54708)
OR (log.varid = 47475)
OR (log.varid = 54606)
OR (log.varid = 25528)
OR (log.varid = 54729))
GROUP BY to_char(ipstimestamp, ''yyyy MM DD HH24h''), row_name, objectid, bucket
ORDER BY to_char(ipstimestamp, ''yyyy MM DD HH24h''), row_name, objectid, bucket' )
As mthreport(item_name text, varid_37551 integer,
varid_27087 integer ,
varid_50876 integer ,
varid_45096 integer ,
varid_54708 integer ,
varid_47475 integer ,
varid_54606 integer ,
varid_25528 integer ,
varid_54729 integer ,
varid_29469 integer)
可以使用以下连接字符串针对测试表测试查询:
“主机=bellariastrasse.com 端口=5432 dbname=IpsLogging 用户=来宾 密码=来宾”
该查询在语法上是正确的并且运行良好。我的问题是 COUNT(*) 值总是填充最左边的列。但是,在许多情况下,左侧列应为零或 NULL,并且仅应填充第二(或第 n)列。我的大脑正在融化,我无法弄清楚出了什么问题!