Re: synchronous_commit off

[Greg Smith <greg@xxxxxxxxxxxxxxx>]

On 08/01/2011 09:29 AM, Anibal David Acosta wrote:

Can a transaction committed asynchronously report an error, duplicate key or something like that, causing a client with a OK transaction but server with a FAILED transaction.

No.  You are turning off the wait for the transaction to hit disk before returning to the client, but all the validation checks are done before that.  The sole risk with synchronous_commit off is that a client will get COMMIT, but the server will lose the transaction completely--when there's a crash before it's written to disk.

-- 
Greg Smith   2ndQuadrant US    greg@xxxxxxxxxxxxxxx   Baltimore, MD
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