Re: Removing INNER JOINs
От | Jim Finnerty |
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Тема | Re: Removing INNER JOINs |
Дата | |
Msg-id | 1512966801439-0.post@n3.nabble.com обсуждение исходный текст |
Ответ на | Removing INNER JOINs (Andreas Joseph Krogh <andreas@visena.com>) |
Ответы |
Re: Removing INNER JOINs
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Список | pgsql-general |
FK constraint enforcement may be deferred, but only to the end of the DML transaction. Can someone provide an example where a SELECT statement that is not in that DML transaction and that can view only committed data can see a FK-side row that doesn't join with any PK-side row? I don't think I understand why the volatile function scenario. Can a volatile function somehow circumvent FK enforcement? If not, then why is the volatile function scenario different than any other DML with respect to the enforcement of FK constraints? thank you, /Jim F -- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html
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