Re: Questions regarding interaction of stored functions

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От Joshua D. Drake
Тема Re: Questions regarding interaction of stored functions
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Msg-id 4242D5CD.9000804@commandprompt.com
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Ответ на Questions regarding interaction of stored functions and transactions  (Bill Moran <wmoran@potentialtech.com>)
Список pgsql-general
>Let's take the following fictional scenerio:
>
>BEGIN;
>INSERT INTO table1 VALUES ('somestring');
>INSERT INTO table1 VALUES ('anotherstring');
>SELECT user_defined_function();
>COMMIT;
>
>In this case, user_defined_function() does a lot more table manipulation.
>I don't want that to be done if any statement prior fails, but it seems as
>if it's always done, regardless.  It seems as if the second INSERT is not
>executed if the first fails, but the function is always called.
>
>
If any one of the statements within the transaction (including the
function) fails the entire statement will need to rollback.

If you are running 8 you can use savepoints to only have certain
parts of the entire transaction rollback and then continue forward.

Sincerely,

Joshua D. Drake



>So ... I'm a little fuzzy on this.  Is there a doc that details this
>behaviour?
>
>TIA.
>
>
>


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