If you are interested in a more powerful way of tracking database statistics over time, I suggest you look at pg_statsinfo, an open source package available at http://pgstatsinfo.sourceforge.net/ and developed by our friends from NTT.
If you are interested in a more powerful way of tracking database statistics over time, I suggest you look at pg_statsinfo, an open source package available at http://pgstatsinfo.sourceforge.net/ and developed by our friends from NTT.