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Re: determining if there's a transaction in progress

From: Björn Lundin <bjorn(dot)lundin(at)swipnet(dot)se>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: Re: determining if there's a transaction in progress
Date: 2002-08-19 08:54:58
Message-ID: ajqbnu$25ma$1@news.hub.org (view raw or flat)
Thread:
Lists: pgsql-interfaces
Warren W. Gay VE3WWG wrote:
<cut>

> I too could benefit from a libpq feature that indicates if a transaction
> is pending. This
> helps in determining in a destructor (or Ada finalization) whether the
> default action
> to rollback/commit is necessary (rather than depend upon the server
> default action).
> Assuming it is always necessary is clumsy, and imposes unnecessary
> overhead in
> situations where a transaction may not be in progress.
</cut>

In Ada, you could keep track of transaction state in a package.
Put 'start_trans', 'commit' and 'rollback' procedures that changes the 
transaction state accordingly. You'll then need a function 
'trans_in_progress' to check it

Example at http://home.swipnet.se/lundin/ada_95_tools.html

/Bjrn

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