On Sat, Mar 28, 2015 at 7:52 AM, Rebecca Zahra <rebeccaza...@gmail.com> wrote:
> Good morning, > > I am Rebecca Zahra and I am currently in my final year of Masters studies > at the University of Malta. My thesis is about the usage of indexes for > multi-dimensional data. > > I was going through the posts regarding GIST indexes and I came across the > following > http://dba.stackexchange.com/questions/39589/optimizing-queries-on-a-range-of-timestamps-two-columns > > I was wondering if maybe you can help me with a question. I know that an > R-Tree index implementation is used on top of GIST to index spatial data. > Can you please tell me what type of index is used on top of GIST to index > *range > types*? > > PostgreSQL has had indexable range types for quite some time now: http://www.postgresql.org/docs/current/static/rangetypes.html#RANGETYPES-GIST Indexable with gist or spgist. I don't think the docs cover the actual implementation internals though - you'll probably have to go to the source if you need that. -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/
