Mike Charnoky wrote: > This is strange... count(*) operations over a period of one day's worth > of data now take ~1-2 minutes to run or ~40 minutes. It seems that the > first time the data is queried it takes about 40 minutes. If I try the > query again, it finishes in 1-2 minutes!
This is just cache effect. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
