On Wed, Feb 10, 2010 at 12:19 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Andrew Dunstan and...@dunslane.net writes:
Tom Lane wrote:
The code is only trying to substitute for something you can't have
in parallel restore, ie --single-transaction.
Exactly. IIRC that's why --single-transaction was
2010/2/10 Takahiro Itagaki itagaki.takah...@oss.ntt.co.jp
Tom Lane t...@sss.pgh.pa.us wrote:
Takahiro Itagaki itagaki.takah...@oss.ntt.co.jp writes:
We have an optimization to bulkload date in pg_restore, but the code
only works in parallel restore (--jobs = 2). Why don't we do the
We have an optimization to bulkload date in pg_restore, but the code
only works in parallel restore (--jobs = 2). Why don't we do the
same optimization in the serial restore (--jobs = 1) ?
We checks is_parallel to decide to use BEGIN-TRUNCATE-COPY:
if (is_parallel te-created)
but we can
Takahiro Itagaki itagaki.takah...@oss.ntt.co.jp writes:
We have an optimization to bulkload date in pg_restore, but the code
only works in parallel restore (--jobs = 2). Why don't we do the
same optimization in the serial restore (--jobs = 1) ?
The code is only trying to substitute for
Tom Lane t...@sss.pgh.pa.us wrote:
Takahiro Itagaki itagaki.takah...@oss.ntt.co.jp writes:
We have an optimization to bulkload date in pg_restore, but the code
only works in parallel restore (--jobs = 2). Why don't we do the
same optimization in the serial restore (--jobs = 1) ?
The
Tom Lane wrote:
Takahiro Itagaki itagaki.takah...@oss.ntt.co.jp writes:
We have an optimization to bulkload date in pg_restore, but the code
only works in parallel restore (--jobs = 2). Why don't we do the
same optimization in the serial restore (--jobs = 1) ?
The code is only
Andrew Dunstan and...@dunslane.net writes:
Tom Lane wrote:
The code is only trying to substitute for something you can't have
in parallel restore, ie --single-transaction.
Exactly. IIRC that's why --single-transaction was introduced in the
first place.
To me, --single-transaction is mostly
Andrew Dunstan and...@dunslane.net wrote:
Takahiro-san is suggesting there is a case for doing the optimisation in
non-parallel mode. But if we do that, is there still a case for
--single-transaction?
I think --single-transaction is useful to restore data into non-empty
databases. A normal
