Re: Fillfactor for GIN indexes

On Thu, Jan 8, 2015 at 2:03 PM, Michael Paquier
<michael.paquier@gmail.com> wrote:
> On Thu, Jan 8, 2015 at 6:31 AM, Alexander Korotkov <aekorotkov@gmail.com> wrote:
>> On Wed, Jan 7, 2015 at 4:11 PM, Michael Paquier <michael.paquier@gmail.com>
>>> I am attaching an updated patch, with the default fillfactor value at
>>> 75%, and with the page split code using the fillfactor rate.
>>> Thoughts?
>> Rewritten version of patch is attached. I made following changes:
>
> Thanks! With this patch (and my previous version as well) GIN indexes
> with default fillfactor have a size higher than 9.4 indexes, 9.4
> behavior being consistent only with fillfactor=100 and not the default
> of 90. Are we fine with that?

IMO, this patch has value to control random updates on GIN indexes,
but we should have a default fillfactor of 100 to have index size
consistent with 9.4. Thoughts?