> So one very effective way of speeding this process up is giving the > vacuum process lots of memory, because it will have to do fewer passes > at each index. How much do you have? OK, this is my problem... it is left at default (16 megabyte ?). This must be a mistake in configuration, on other similar boxes I set this to 262144 (256 megabyte). The box has 4 Gbyte memory. Thanks for the explanation - you were right on the spot, it will likely solve the problem. Cheers, Csaba.
