Re: committing inside cursor loop

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От Tom Lane
Тема Re: committing inside cursor loop
Дата
Msg-id 17538.1519137948@sss.pgh.pa.us
обсуждение исходный текст
Ответ на committing inside cursor loop  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
Ответы Re: committing inside cursor loop
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Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> Here is a patch that allows COMMIT inside cursor loops in PL/pgSQL.  As
> alluded to in earlier threads, this is done by converting such cursors
> to holdable automatically.  A special flag "auto-held" marks such
> cursors, so we know to clean them up on exceptions.

I haven't really read this patch, but this bit jumped out at me:

+    Inside a cursor loop, <command>ROLLBACK</command> is not allowed.  (That
+    would have to roll back the cursor query, thus invalidating the loop.)

Say what?  That seems to translate into "we have lost the ability to
deal with errors".  I don't think this is really what people are hoping
to get out of the transactional-procedure facility.

            regards, tom lane


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