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.
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Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
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