Re: table locking
От | Bruce Momjian |
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Тема | Re: table locking |
Дата | |
Msg-id | 200202181534.g1IFYDP19471@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: table locking (Shane Wright <me@shanewright.co.uk>) |
Ответы |
Re: table locking
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Список | pgsql-sql |
Shane Wright wrote: > Hi Bruce > > Thanks for the information (and the book link, straight in the bookmarks and > remembered for an Amazon search...) > > Anyway, the chapter was helpful, but I'm still stuck. SERIALIZABLE looks > like it would do the job, but I don't want any queries to fail/rollback - I'd > rather they stalled on SET TRANSACTION or LOCK TABLE until the first was > complete. > > Is this possible? > > I am also assuming that even with SERIALIZABLE, concurrent SELECTs can > proceed unhindered? Actually, I think the default READ COMMITTED will work fine for you. Backends will block waiting for your write, then continue when you commit, and reads will not be affected. I am not totally sure what you are testing, so I suggest starting two psql sessions and trying it. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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