On Wed, 28 Jun 2006, Martijn van Oosterhout wrote:

On Wed, Jun 28, 2006 at 01:09:23PM +0400, Teodor Sigaev wrote:
We tested gin with 5 millions records (but not a wikipedia's text, but with
blog records which is usually mush shorter) and index creation time was
near 8 hours on Dual Xeon 3.2, but we didn't try GiST. In other hand,
creating GiST index on 0.5 millions emails took about 12 hours.

That's why 7 minutes is very suspicious result.

Tom did commit a patch a while ago which made a huge difference in
index creation time for tsearch by changing one routine. I don't know
if it got backpatched, so it might be worth checking people are working
on the same version.

it's on 8.1.4 and speedup is about 10 times.

Have a nice day,

Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83

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