Re: IsTransactionState() is being used incorrectly

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: IsTransactionState() is being used incorrectly
Date: 2007-07-17 01:54:50
Message-ID: 200707170154.l6H1so219952@momjian.us
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Is this done or should it be kept for 8.4?

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Tom Lane wrote:
> I just noticed that there are a number of places (mostly GUC assignment
> hooks) that use IsTransactionState() to decide if it's safe for them to
> do catalog lookups. This seems pretty bogus because IsTransactionState
> will return true in an aborted transaction. I'm not sure there's any
> actual bug because of other constraints on when GUC updates occur, but
> it sure looks like trouble waiting to happen.
>
> We could fix this either by changing the definition of
> IsTransactionState() or by introducing another test function with
> a different name. Any thoughts which is preferable?
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster

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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

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