Re: [ADMIN] number of transactions doubling
От | Heikki Linnakangas |
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Тема | Re: [ADMIN] number of transactions doubling |
Дата | |
Msg-id | 451CDFAF.5050804@enterprisedb.com обсуждение исходный текст |
Ответ на | Re: [ADMIN] number of transactions doubling ("Jim C. Nasby" <jim@nasby.net>) |
Ответы |
Re: [ADMIN] number of transactions doubling
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Список | pgsql-jdbc |
Jim C. Nasby wrote: > On Thu, Sep 28, 2006 at 02:51:24PM -0700, Sriram Dandapani wrote: > >> The target table has triggers that route data to appropriate tables. The >> tables to which data is routed has check constraints that do further >> inserts. (All of this happens in 1 jdbc transaction) >> > > Actually, no matter what JDBC is doing, all of that will happen within a > single transaction on the database (unless you're using something like > dblink from within the triggers). So even if you were issuing insert > statements with autocommit on, you'd see at most one transaction per > insert. > The triggers might use subtransactions. You get implicit subtransactions if have an EXCEPTION clause in a plpgsql function. I'm not sure if there's other things that do that as well. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com
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