Re: BUG #17504: psql --single-transaction -vON_ERROR_STOP=1 still commits after client-side error

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От Tom Lane
Тема Re: BUG #17504: psql --single-transaction -vON_ERROR_STOP=1 still commits after client-side error
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Msg-id 2656555.1654877531@sss.pgh.pa.us
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Ответ на Re: BUG #17504: psql --single-transaction -vON_ERROR_STOP=1 still commits after client-side error  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: BUG #17504: psql --single-transaction -vON_ERROR_STOP=1 still commits after client-side error  (Michael Paquier <michael@paquier.xyz>)
Re: BUG #17504: psql --single-transaction -vON_ERROR_STOP=1 still commits after client-side error  (Michael Paquier <michael@paquier.xyz>)
Список pgsql-bugs
I wrote:
> ISTM that an appropriate fix would be to remember if any command
> failed, not just the last one.

Alternatively, one could argue that once we've decided to issue
ROLLBACK, there's not really any reason to continue performing
additional -c/-f actions, so that a sufficient fix would be to
get rid of the loop's ON_ERROR_STOP conditionality:

-            if (successResult != EXIT_SUCCESS && pset.on_error_stop)
+            if (successResult != EXIT_SUCCESS)
                 break;

But I'm not sure that that argument is bulletproof.  If we are
considering a client-side failure then the server may still think
the transaction is fine, in which case we should continue to
perform actions that could have client-side side effects; or
at least, not doing so is a potentially significant behavioral
change.

In any case, I now agree with Robert's upthread objection that
this should not have been back-patched.  It's a nontrivial
behavioral change and it's not clear that it's 100% without
downsides.  I particularly do not want to ship 14.4 with this,
because we really need a clean release with no new regressions.

            regards, tom lane



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