Обсуждение: SP-GIST docs and examples
I know Oleg has been discussing quad trees for years now, so SP-GIST sounds like a great feature. The docs on SP-GIST simply suggest people read the code, which is way below our normal standard of documentation. CREATE INDEX contains no examples involving SP-GIST indexes. It seems likely that the first thing a user will ask is When can I use it? How do I create one? When should I use it in comparison with existing methods? ISTM that if we mention this as a major feature in 9.2, and I think we should, that there should be something more about these in the shared docs. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
On Thursday, June 7, 2012, Simon Riggs wrote:
--
Magnus Hagander
Me: http://www.hagander.net/
Work: http://www.redpill-linpro.com/
I know Oleg has been discussing quad trees for years now, so SP-GIST
sounds like a great feature.
The docs on SP-GIST simply suggest people read the code, which is way
below our normal standard of documentation.
It's the same we have for normal GiST indexes, no? It's under "internals", I think it's ok in there.
CREATE INDEX contains no examples involving SP-GIST indexes.
It seems likely that the first thing a user will ask is When can I use
it? How do I create one? When should I use it in comparison with
existing methods?
This is the problem though - it only has internals documentation, and no end-user documentation.
Not sure GiST has that much end-user documentation either. And it is included in things like the FTI docs.
ISTM that if we mention this as a major feature in 9.2, and I think we
should, that there should be something more about these in the shared
docs.
+1, it should definitely get some more docs if possible.
//Magnus
--
Magnus Hagander
Me: http://www.hagander.net/
Work: http://www.redpill-linpro.com/
On Thu, Jun 7, 2012 at 5:19 AM, Simon Riggs <simon@2ndquadrant.com> wrote: > I know Oleg has been discussing quad trees for years now, so SP-GIST > sounds like a great feature. > > The docs on SP-GIST simply suggest people read the code, which is way > below our normal standard of documentation. I completely agree. The GIN and GIST documentation are pretty deficient as well. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
On 7 June 2012 12:52, Robert Haas <robertmhaas@gmail.com> wrote: > On Thu, Jun 7, 2012 at 5:19 AM, Simon Riggs <simon@2ndquadrant.com> wrote: >> I know Oleg has been discussing quad trees for years now, so SP-GIST >> sounds like a great feature. >> >> The docs on SP-GIST simply suggest people read the code, which is way >> below our normal standard of documentation. > > I completely agree. The GIN and GIST documentation are pretty > deficient as well. Didn't Andrew Gierth volunteer to help rewrite those some time back? Maybe nudge him about it again. -- Thom
On Thu, 7 Jun 2012, Thom Brown wrote:
> On 7 June 2012 12:52, Robert Haas <robertmhaas@gmail.com> wrote:
>> On Thu, Jun 7, 2012 at 5:19 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
>>> I know Oleg has been discussing quad trees for years now, so SP-GIST
>>> sounds like a great feature.
>>>
>>> The docs on SP-GIST simply suggest people read the code, which is way
>>> below our normal standard of documentation.
>>
>> I completely agree. The GIN and GIST documentation are pretty
>> deficient as well.
>
> Didn't Andrew Gierth volunteer to help rewrite those some time back?
> Maybe nudge him about it again.
Oh, please !
Regards, Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru),
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83