Re: point -> double,double ?

Greg Stark <gsstark@mit.edu> writes:
> Tom Lane <tgl@sss.pgh.pa.us> writes:
>> point[0] and point[1].  Not sure if this is adequately documented.

> Thank you very much.

> It may also be that I just don't have the right book. The book I have seems to
> be more of a tutorial than a reference. Is there a recommended reference book
> for postgres?

Book?  Save a tree, use the online manuals ;-).  I find this particular
item documented at the bottom of

http://www.ca.postgresql.org/users-lounge/docs/7.3/postgres/functions-geometry.html

            regards, tom lane