On Dec 20, 2012, at 3:27 PM, Adrian Klaver <[email protected]> wrote:
> When on (the default), each SQL command is automatically committed upon
> successful completion. To postpone commit in this mode, you must enter a
> BEGIN or START TRANSACTION SQL command. When off or unset, SQL commands are
> not committed until you explicitly issue COMMIT or END. The autocommit-off
> mode works by issuing an implicit BEGIN for you, just before any command that
> is not already in a transaction block and is not itself a BEGIN or other
> transaction-control command, nor a command that cannot be executed inside a
> transaction block (such as VACUUM).
>
> Note: In autocommit-off mode, you must explicitly abandon any failed
> transaction by entering ABORT or ROLLBACK. Also keep in mind that if you exit
> the session without committing, your work will be lost.
> Note: The autocommit-on mode is PostgreSQL's traditional behavior, but
> autocommit-off is closer to the SQL spec. If you prefer autocommit-off, you
> might wish to set it in the system-wide psqlrc file or your ~/.psqlrc file.
In this case, not only is AUTOCOMMIT set to "on", but I wasn't even able to
turn it off for testing purposes.
test=# SET AUTOCOMMIT TO off;
ERROR: SET AUTOCOMMIT TO OFF is no longer supported
So yes, AUTOCOMMIT is definitely on.
--
Stephen Touset
Senior Software Engineer
[email protected]
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