On 12 April 2013 23:21, Ants Aasma <ants@cybertec.at> wrote:
>> In general, we have more flexibility with WAL because there is no
>> upgrade issue. It would be nice to share code with the data page
>> checksum algorithm; but really we should just use whatever offers the
>> best trade-off in terms of complexity, performance, and error detection
>> rate.
>>
>> I don't think we need to decide all of this right now. Personally, I'm
>> satisfied having SIMD checksums on data pages now and leaving WAL
>> optimization until later.
>
> +1
OK, lets drop that idea then. SIMD checksums for 16-bit page checksums
only in this release.
--Simon Riggs http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services