On Fri, 2007-06-01 at 17:40, Alvaro Herrera wrote: > Huh, why do you say that it doesn't need any vacuuming? This table is only inserted and rarely deleted, so other than the XID wraparound vacuuming it is not critical. Of course it will need vacuum finally, but it can survive months without it - or till the XID wraparound occurs, which I can't estimate yet if in danger or not... how could I check that ? (I can probably find the answer if looking harder though). Cheers, Csaba.