Re: Incredibly slow restore times after 9.0>9.2 upgrade

jmcdonagh <Joseph(dot)E(dot)McDonagh(at)gmail(dot)com> writes:

> I just had a thought- I know some of these tables are in need of a vacuuming.
> Could it be that the dump is dumping a bunch of garbage that the restore has
> to sift through on the restore? I don't know enough details to know if this
> is a dumb thought or not.

No. However it's true that the dump will take a bit longer having to
scan a bloated table rather than a tight one.

Dump will only output the live rows. psql or pg_restore whatever you're
using on the target side will not have to step over any junk.

HTH

>
> The restore to RDS took roughly the same amount of time. My next move is to
> try on a fast instance store, and also do a postgres 9 restore of a pure SQL
> dump, but that won't really be a great test since I use custom format. I'm
> assuming here that I can't take the custom dump from 9.2 and apply it to
> 9.0, or can I?
>
>
>
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--
Jerry Sievers
Postgres DBA/Development Consulting
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