Re: Recommendations for partitioning?
От | Shaun Thomas |
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Тема | Re: Recommendations for partitioning? |
Дата | |
Msg-id | 52B46DCD.2070107@optionshouse.com обсуждение исходный текст |
Ответ на | Re: Recommendations for partitioning? (Alvaro Herrera <alvherre@2ndquadrant.com>) |
Ответы |
Re: Recommendations for partitioning?
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Список | pgsql-performance |
On 12/20/2013 09:59 AM, Alvaro Herrera wrote: > WITH moved AS ( > DELETE FROM src WHERE .. > RETURNING * > ) INSERT INTO dst SELECT * FROM moved; I know that's effectively an atomic action, but I'd feel a lot more comfortable reversing that logic so the delete is based on the results of the insert. WITH saved AS ( INSERT INTO dst SELECT * FROM src WHERE ... RETURNING * ) DELETE FROM src WHERE ...; I'll admit yours is cleaner, though. :) -- Shaun Thomas OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604 312-676-8870 sthomas@optionshouse.com ______________________________________________ See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email
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