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From: Markus Wanner <markus@bluegap.ch>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: Alvaro Herrera <alvherre@commandprompt.com>
Cc: Andrew Dunstan <andrew@dunslane.net>
Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: MARK CALLAGHAN <mdcallag@gmail.com>
Cc: Aidan Van Dyk <aidan@highrise.ca>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: Re: [COMMITTERS] pgsql: Efficient	 transaction-controlled synchronous replication.
Date: Sat, 19 Mar 2011 20:27:04 +0100
Message-ID: <4D850388.5000401@bluegap.ch> (raw)
In-Reply-To: <4D838CE1020000250003BB06@gw.wicourts.gov>
References: <E1PwMns-00047O-UU@gemulon.postgresql.org>
	<4D741441.2090704@dunslane.net>
	<1299454125.1696.6138.camel@ebony>
	<4D74896C.5030402@enterprisedb.com>
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	<AANLkTi=B+cWE-pQJQM=zoA9=Zr25W7zPPMFvvBe11O4E@mail.gmail.com>
	<1300457958.18619.13780.camel@ebony>
	<4D832B4D020000250003BA98@gw.wicourts.gov>
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	<4D838723020000250003BAFB@gw.wicourts.gov>
	<AANLkTin3y0VzPADjNmXYWF5t_ou7ywqHARJhaxbQ=sTR@mail.gmail.com>
	<4D838CE1020000250003BB06@gw.wicourts.gov>

On 03/18/2011 10:48 PM, Kevin Grittner wrote:
> the least of the evils.  I guess we should document it, though, so
> nobody has a false expectation that seeing something on the replica
> means that a connection looking at the master will see something
> that current.

Agreed.  Note, however, that even if there's no such guarantee, it's
highly unlikely for a user (or application) to ever notice this during
normal operation.

Regards

Markus Wanner



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  Cc: markus@bluegap.ch, Kevin.Grittner@wicourts.gov, robertmhaas@gmail.com, simon@2ndquadrant.com, alvherre@commandprompt.com, andrew@dunslane.net, heikki.linnakangas@enterprisedb.com, mdcallag@gmail.com, aidan@highrise.ca, pgsql-hackers@postgresql.org
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