[postgis-users] Cascaded Union Aggregate function

[Paragon Corporation]

Oops sorry about that.

Just realized I had ugly spaces in the link.  I've changed it.  Use this one

http://postgis.refractions.net/support/wiki/index.php?upgis_cascadeunion

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Paragon
Corporation
Sent: Saturday, October 04, 2008 7:44 PM
To: 'PostGIS Users Discussion'
Subject: [postgis-users] Cascaded Union Aggregate function

For those people who have unions to do that are slow, feel free to try out
this aggregate union function.

I haven't tested it enough for it to make it into 1.3.4, but have included a
link to the source code in the wiki.  It should work just fine on PostGIS
versions 1.2.2 and above.

http://postgis.refractions.net/support/wiki/index.php?PL%2FPGSQL%20Pseudo%20
Cascade%20Union%20Aggregate%20Function

Let me know if you run into any problems with it.  It has worked well for
the samples I have used it on.

Thanks,
Regina


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