Re: [PoC] pgstattuple2: block sampling to reduce physical read

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Satoshi Nagayasu <snaga(at)uptime(dot)jp>
Cc: Greg Smith <greg(at)2ndQuadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PoC] pgstattuple2: block sampling to reduce physical read
Date: 2013-09-15 02:07:43
Message-ID: 1379210863.19286.29.camel@vanquo.pezone.net
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On Sat, 2013-09-14 at 16:18 +0900, Satoshi Nagayasu wrote:
> I'm looking forward to seeing more feedback on this approach,
> in terms of design and performance improvement.
> So, I have submitted this for the next CF.

Your patch fails to build:

pgstattuple.c: In function ‘pgstat_heap_sample’:
pgstattuple.c:737:13: error: ‘SnapshotNow’ undeclared (first use in this function)
pgstattuple.c:737:13: note: each undeclared identifier is reported only once for each function it appears in

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