"Marinos J. Yannikos" <mjy@geizhals.at> writes:
> according to
> http://www.postgresql.org/docs/8.0/interactive/limitations.html ,
> concurrent access to GiST indexes isn't possible at the moment. I
> haven't read the thesis mentioned there, but I presume that concurrent
> read access is also impossible.
You presume wrong ...
regards, tom lane