"David G. Johnston" <[email protected]> writes:
> On Mon, Jan 29, 2018 at 8:33 AM, Tom Lane <[email protected]> wrote:
>> What we do have though is client-side support for appropriate behaviors.
>> In psql, see the AUTOCOMMIT and ON_ERROR_ROLLBACK control variables.

> Not quite the same.  I think what people probably want is for psql to
> recognize it is in a transaction and before sending a command to the server
> for processing to precede it by sending "SAVEPOINT random()".  Then, before
> returning the result of the command to the user issue either "RELEASE
> SAVEPOINT" or "ROLLBACK TO SAVEPOINT" depending on whether the command
> succeeded or failed.  Then report the result to the user.

Which part of that isn't implemented by ON_ERROR_ROLLBACK?

                        regards, tom lane

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