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	id AA14140; Mon, 10 Aug 92 09:41:45 -0700
Message-Id: <9208101641.AA14140@postgres.Berkeley.EDU>
From: postarch (Postgres Mailing Archive)
Subject: Re: GEOGRAPHIC FUNCTIONS
To: postgres@postgres.berkeley.edu
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Reply-To: mer@postgres.berkeley.edu
In-Reply-To: Your message of "Tue, 04 Aug 92 03:01:17 PDT."
             <9208041001.AA10090@postgres.Berkeley.EDU> 
Date: Mon, 10 Aug 92 09:41:23 PDT

you write:

>   I am using the geographic fuctions in "geo-ops.c" to implement
> more complicated functions that i wrote. I am getting strage results
> when I to get the distance between two objects.
>   As any of you used those functions ?
>   Did anybody encounter problems with them ?

There were several bugs in the 3.1 implementations for the functions
in geo-ops.c.  Many of them were fixed in 4.0, but as I understand it
they still are not correct for all cases.  I know some sites on this
mailing list have worked on their own implementations for many of the
geo-ops functions and hopefully they will be willing to pass their work
along to you [ hint hint ]...


Jeff Meredith
mer@postgres.berkeley.edu