Re: Doubt in heap_release_fetch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Suresh <suiyengar(at)yahoo(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Doubt in heap_release_fetch
Date: 2008-03-07 05:57:55
Message-ID: 6992.1204869475@sss.pgh.pa.us
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Suresh <suiyengar(at)yahoo(dot)com> writes:
> What is the time qualification check ?

HeapTupleSatisfiesVisibility(). See
src/include/utils/tqual.h
src/backend/utils/time/tqual.c
and if none of this is making any sense maybe you need to start here:
http://developer.postgresql.org/pgdocs/postgres/mvcc.html

regards, tom lane

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