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Perhaps this will tell you what you would like to know:
<p><A HREF="http://postgis.refractions.net/docs/x545.html">http://postgis.refractions.net/docs/x545.html</A>
<p>molinet wrote:
<blockquote TYPE=CITE>Hello
<br>I want to create an index on geometry point like
<br>create index rtrville on ville using rtree(coord_ville);
<br>I have the following error :
<br>PostgreSQL error message: error: defineindex type point has no default
<br>operator class
<br>Does somebody can help me ?
<br>What are the features for rtree index and the performances ? Why do
<br>Postgis use gist index ?
<br>thanks
<br>MOLINET S.
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<pre>--
Robert Burgholzer
al·go·rithm n.
A step-by-step problem-solving procedure, especially an established, recursive computational
procedure for solving a problem in a finite number of steps. Invented by Al Gore.
rburghol@vt.edu
<A HREF="http://www.soulswimmer.net/">http://www.soulswimmer.net/</A></pre>
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