[DB-SIG] Some obscurity with paramstyle

[Federico Di Gregorio]

On 18/07/11 11:25, James Henstridge wrote:
> If all adapters that support transactions function like that, then I
> think it would be sensible to require them to raise an error in that
> case.  If they don't raise an error, you know that someone somewhere
> is going to write code like the following:
> 
>     with transaction:
>         # do stuff
>         with transaction:
>             # do more stuff
> 
> ... and wonder why things break.

This can make sense for backends that support check points
(subtransactions). PostgreSQL is an example (even if we don't yet
support checkpoints in psycopg).

federico

-- 
Federico Di Gregorio                         federico.digregorio at dndg.it
Studio Associato Di Nunzio e Di Gregorio                  http://dndg.it
             Quis custodiet ipsos custodes? -- Juvenal, Satires, VI, 347