Tom, On 5/8/06 11:46 AM, "Tom Lane" <[EMAIL PROTECTED]> wrote:
> I made a table of 16M rows with an > index over a random-data integer column. With a thoroughly disordered > index (built on-the-fly as the random data was inserted), the time to > VACUUM after deleting a small number of rows was 615 seconds with > yesterday's code, 31 seconds today. With a perfectly-ordered index > (identical table, but CREATE INDEX after all the data is in place), the > times were about 28 and 26 seconds respectively. Very impressive! This corroborates findings we've had with index maintenance in the field - thanks for finding/fixing this. - Luke ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
