按表查看查询警报

以下查询标识记录了提示事件的表，并标识了最频繁引发的提示类型。

如果所确定的表的行的 minutes 值较大，请检查该表以查看是否需要对其执行日常维护（如对其运行 ANALYZE 或 VACUUM）。

如果某一行的 count 值高但 table 值为 null，则对 STL_ALERT_EVENT_LOG 运行查询以获得相关的 event 值，从而调查如此频繁引发提示的原因。

select trim(s.perm_table_name) as table, 
(sum(abs(datediff(seconds, s.starttime, s.endtime)))/60)::numeric(24,0) as minutes, trim(split_part(l.event,':',1)) as event,  trim(l.solution) as solution, 
max(l.query) as sample_query, count(*) 
from stl_alert_event_log as l 
left join stl_scan as s on s.query = l.query and s.slice = l.slice 
and s.segment = l.segment and s.step = l.step
where l.event_time >=  dateadd(day, -7, current_Date) 
group by 1,3,4 
order by 2 desc,6 desc;