Thread: nested transactions

nested transactions

From
James Gregory
Date:
Hi all,

I am writing a stored procedure where it is absolutely necessary that it
be executed within a single transaction block. Now, postgres doesn't
support nested transactions, and that's ok, it's not really what I want.
I want to know how to test whether or not a piece of sql that is
executing is doing so inside a transaction. If it is, I'll let it be,
otherwise I want to set a flag to start one and commit at the end of the
function.

Is there a way to do this?

Thanks,

James.



Re: nested transactions

From
Martijn van Oosterhout
Date:
Stored procedures are always within a single block. They inherit whatever
transaction from the caller. If there is an error, it rollbacks your
function (and the callers too IIRC).

On Fri, Mar 14, 2003 at 03:11:47PM +0000, James Gregory wrote:
> Hi all,
>
> I am writing a stored procedure where it is absolutely necessary that it
> be executed within a single transaction block. Now, postgres doesn't
> support nested transactions, and that's ok, it's not really what I want.
> I want to know how to test whether or not a piece of sql that is
> executing is doing so inside a transaction. If it is, I'll let it be,
> otherwise I want to set a flag to start one and commit at the end of the
> function.
>
> Is there a way to do this?
>
> Thanks,
>
> James.
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org

--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Support bacteria! They're the only culture some people have.

Attachment