Re: Writeable CTE patch

From: Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alex Hunsaker <badalex(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Writeable CTE patch
Date: 2009-12-07 14:46:11
Message-ID: 4B1D1533.7080804@cs.helsinki.fi
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Tom Lane wrote:
> The only thing that I'd be comfortable with is
> copying the snap and modifying the copy.

I don't see an easy way to do that with the current code; CopySnapshot()
is static and PushUpdatedSnapshot() seems to be a bit of a pain since it
messes up some of the existing code which uses the active snapshot
stack. Any ideas?

Regards,
Marko Tiikkaja

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