[postgis-users] statistics on a spatial index

[Mark Cave-Ayland]

On 09/06/11 20:08, Oleksiy Karpenko wrote:

> Hi,
>
> How can I obtain various statistics on an existing index in the
> database? For example, number of levels, average MBR size by each
> dimension, and so on?

If you wish to start looking at the R-Tree structure then I would start 
by looking at Oleg and Teodor's gevel utility:

http://www.sai.msu.su/~megera/postgres/gist/

One day we should probably think about adding something like this into 
the main codebase...


HTH,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
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