Re: Reduce amount of WAL generated by CREATE INDEX for gist, gin and sp-gist

Hi Anastasia,

On 2/28/18 11:03 AM, Anastasia Lubennikova wrote:
> I want to propose a bunch of patches which allow to reduce WAL traffic
> generated by CREATE INDEX for GiST, GIN and SP-GiST. Similarly to b-tree
> and RUM, we can now log index pages of other access methods only once
> in the end of indexbuild process. Implementation is based on generic_xlog.
>
> Not only it decreases the amount of WAL generated, but also completely
> eliminates WAL overhead in case of error during index build.

This seems to be a worthwhile patch, but it was submitted to the 2018-03
CF at the last moment with no prior discussion or review as far as I can
tell. It appears to be non-trivial and therefore not a good fit for the
last CF for PG11.

I have moved it to the 2018-09 CF.

Regards,
--
-David
david(at)pgmasters(dot)net