"Jeremy M. Guthrie" <[EMAIL PROTECTED]> writes: > With PostGreSQL V7.3.4, a completely reindexed and vacuumed(not-full) foot > print was 5.2 gig. Now some of the disk space(probably 10-15 % was waiting > in the FSM to be used). However, 7.4 comes up at 2.3 gig.
First thought is that your 7.3 DB was suffering from index bloat (I know you said you reindexed, but did you get everything including system indexes?). The only material space savings in 7.4 over 7.3 as far as raw data size goes is Manfred's row header size reduction (8 bytes per row), which wouldn't account for that kind of difference unless you had a huge number of very narrow rows ... > Besides the PostGreSQL change I updated my schema to pull out all OIDs > and 'set storage external'. Removing OIDs would save another 4 or 8 bytes per row (depending on what hardware you're on). regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html