Re: Questions regarding interaction of stored functions
От | Joshua D. Drake |
---|---|
Тема | Re: Questions regarding interaction of stored functions |
Дата | |
Msg-id | 4242D5CD.9000804@commandprompt.com обсуждение исходный текст |
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. > > > -- Command Prompt, Inc., home of Mammoth PostgreSQL - S/ODBC and S/JDBC Postgresql support, programming shared hosting and dedicated hosting. +1-503-667-4564 - jd@commandprompt.com - http://www.commandprompt.com PostgreSQL Replicator -- production quality replication for PostgreSQL
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