> What happens if you do: > > plpy.execute("BEGIN"); > > before and after > > plpy.execute("COMMIT"); > > Have a nice day, > -- Thanks for your reply Martin. After making my post I decide not to be so lazy and set up a test environment. After try exactly what you suggested, I got the following error code SPI_ERROR_TRANSACTION A quick search of the documentation and this error code explaination is; if any command involving transaction manipulation was attempted (BEGIN, COMMIT, ROLLBACK, SAVEPOINT, PREPARE TRANSACTION, COMMIT PREPARED, ROLLBACK PREPARED, or any variant thereof) So... unless I am missing something, I would suggest you CANNOT us plpython (or perhaps any other pl language ??) to process transactions ... of course I am a complete newbie, so I am hoping there is someone more senior on this board that could point the way ?? Thanks again. G.