Re: [pg 7.1.rc2] pg_restore and large tables

me@shanewright.co.uk (Shane Wright) writes:
> I have found, on 7.3.4, a _massive_ performance difference on
> restoring without indices - on a 25million row table from 8 hours down
> to <1 hour!
>
> I've found the best way is to do this... (there may be a script
> somewhere that automates this)
>
> - do a --schema-only restore to create the tables
>
> - manually drop the indices using psql
>
> - do a --data-only restore, also using --disable-triggers
>
> - manually recreate the indices.
>
> IIRC, it also helps to turn off fsync

None of this should come as any great surprise...  All but the "turn
off fsync" part is described in the documentation tree thus:

   <http://www.postgresql.org/docs/7.2/interactive/populate.html>
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Christopher Browne
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