[postgis-users] error in GeomUnion closing connections

[Gregory S. Williamson]

What version of postGIS and GEOS is this ? My understanding (not yet tested) is that the newes GEOS release may help this sort of thing.

Greg Williamson
DBA
GlobeXplorer LLC

-----Original Message-----
From:	Yusuf Siddiqui [mailto:ysiddiqui at i3.com]
Sent:	Thu 9/23/2004 10:58 AM
To:	postgis-users at postgis.refractions.net
Cc:	
Subject:	[postgis-users] error in GeomUnion closing connections
Hi Everyone--
 
I am a new subscriber, so I apologize if I ask a question that you may have
seen before...
 
I am using the GeomUnion function to union two geometries.  The function
comes across a geometry it can't handle and sends back messages saying:
 
    NOTICE:  TopologyException: no outgoing dirEdge found (X,Y)
    ERROR:  GEOS union() threw an error!
 
Ok, so maybe there is something wrong with this geometry.  (Although I tried
to union the same two geometries in ArcView, and got no error, so I wonder
if it's a JTS limitation).   In any case, I just skip this and proceed on to
the next command.  But it never gets to the next command.  Instead, it waits
and waits and then finally I get a message saying "Server closed the
connection unexpectedly."  What is even more odd is that it seems to close
other connections to the server at that point, too.

I would not expect a function error to catastrophically hang up a database
like this.  Has anyone seen this before?  Is there a workaround?

Thanks
_______________________________________________

Yusuf Siddiqui
Research & Development
i-cubed : information integration & imaging LLC
201 Linden Street : Third Floor
Fort Collins, CO  80524
970-482-4400 voice
970-482-4499 fax
www.i3.com
_______________________________________________
 


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