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From: Tom Lane <[email protected]>
To: Kevin Stephenson <[email protected]>
Cc: Christophe Pettus <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Nested Stored Procedures - ERROR: invalid transaction termination 2D000
Date: Sat, 22 Mar 2025 18:55:08 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <IA0PR19MB7217A4E99BAAB1FDF576AC738FDA2@IA0PR19MB7217.namprd19.prod.outlook.com>
References: <IA0PR19MB721723603709836EE5D0B17E8FDA2@IA0PR19MB7217.namprd19.prod.outlook.com>
	<[email protected]>
	<[email protected]>
	<IA0PR19MB7217A4E99BAAB1FDF576AC738FDA2@IA0PR19MB7217.namprd19.prod.outlook.com>

Kevin Stephenson <[email protected]> writes:
> Christophe and Tom, thank you for your responses, but I'm still a bit confused. In my original email, the Test 2 case is allowing a ROLLBACK in the EXCEPTION clause without throwing an error. Is it a NOP ROLLBACK being applied to an aborted subTX, a real full ROLLBACK, or something else? Please advise.

The sub-transaction only exists for the body of the BEGIN construct,
up until EXCEPTION.  By the time control arrives at an exception
handler, we've rolled back the sub-xact and are executing in the outer
transaction again.  So if that's a top-level transaction, you can roll
it back, but if it's a subtransaction you can't.

			regards, tom lane

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