Re: Postgres 9.5 / 9.6: Restoring PG 9.4 dump is very very slow

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Hans Braxmeier <hans(dot)braxmeier(at)outlook(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Postgres 9.5 / 9.6: Restoring PG 9.4 dump is very very slow
Date: 2017-04-14 23:40:58
Message-ID: 20571.1492213258@sss.pgh.pa.us
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Hans Braxmeier <hans(dot)braxmeier(at)outlook(dot)com> writes:
> Restoring these dumps in PG 9.4 takes less than 20 minutes, restoring them in PG 9.5/9.5 takes several hours on the same system (even if I make a PG 9.5/9.6 dumps and try to restore this one)!

Can you provide a test case demonstrating this sort of slowdown?

regards, tom lane

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