On 10/22/15 5:52 PM, Andres Freund wrote:
If the receiver didn't write the WAL before processing it then it can just
>stick the page image into the WAL it's writing for itself. Probably not good
>for syncrep, but I don't think you'd want this on for syncrep anyway.
To me this sounds like a recipe for disaster (i.e. complex bugs). WAL
(and thus CRC checksums) differing between nodes. Ugh.

The WAL would *not* differ. This would only affect streaming replication, and only the stream itself.
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com

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