Re: rollback to savepoint issue
| От | David G. Johnston |
|---|---|
| Тема | Re: rollback to savepoint issue |
| Дата | |
| Msg-id | CAKFQuwb9yik6ocVi2_uVb1k_K0gtEKV07EFtoG0e9Rs77rdhCw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: rollback to savepoint issue (Erik Wienhold <ewie@ewie.name>) |
| Список | pgsql-general |
On Monday, September 4, 2023, Erik Wienhold <ewie@ewie.name> wrote:
On 04/09/2023 11:51 CEST Lorusso Domenico <domenico.l76@gmail.com> wrote:
> I can't use the savepoint and rollback to savepoint clause.
> I've found some similar problems around on the web, but I can't catch the
> good way to proceed.
>
> What I'm trying to do is:
> * compare new set of attribute with older
> * if some attributes are part of old set and not in the new one: delete
> the old
> * but if parameter "on_misisng_delete" is false rollback delete command
> and rais exception
> The original code in embedded in a function, but the problem is the same:
Transaction control is not possible in functions. Only in procedures (CALL)
and DO blocks.
Then explain why the original savepoint command wasn’t a syntax, or runtime, error? Plus, the error is syntax, usually when you try something that exists but is disallowed the system gives you some kind of invalid state exception at runtime,
David J.
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