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Re: Doubt in heap_release_fetch - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Doubt in heap_release_fetch
Date
Msg-id 6992.1204869475@sss.pgh.pa.us
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In response to Doubt in heap_release_fetch  (Suresh <suiyengar@yahoo.com>)
Responses Doubt in index scan code  (Suresh <suiyengar@yahoo.com>)
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Suresh <suiyengar@yahoo.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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