[rt-users] Performance Issues after 3.8.0 upgrade -- PostgreSQL delays

[Jessie Bryan]

Update-

Ok, after several hours of logging, what I see most common in the slow
query (1s) log is:

LOG:  duration: 3151.786 ms  statement: EXECUTE <unnamed>  [PREPARE:
SELECT  * FROM Groups WHERE LOWER(Domain) = LOWER($1) AND LOWER(Type)
= LOWER($2)]

Several hundred of these queries in the slow query log data.