Re: Nested Transactions, Abort All

Merlin Moncure <merlin.moncure@rcsonline.com>

From: "Merlin Moncure" <merlin.moncure@rcsonline.com>
To: "Alvaro Herrera" <alvherre@dcc.uchile.cl>
Cc: "PostgreSQL Hackers" <pgsql-hackers@postgresql.org>
Date: 2004-07-02T17:14:25Z
Lists: pgsql-hackers
> If we change the syntax, say by using SUBCOMMIT/SUBABORT for
> subtransactions, then using a simple ABORT would abort the whole
> transaction tree.

Question: with the new syntax, would issuing a BEGIN inside a already
started transaction result in an error?

My concern is about say, a pl/pgsql function that opened and closed a
transation.  This could result in different behaviors depending if
called from within a transaction, which is not true of the old syntax.  

Then again, since a statement is always transactionally wrapped, would
it be required to always issue SUBBEGIN if issued from within a
function?  This would address my concern.

Merlin