[postgis-users] gpc lost database connection - how to debug?

Robert W. Burgholzer rburghol at vt.edu
Wed May 22 18:29:10 PDT 2002


Many thanks to Paul and Nicolas, postgis with the gpc geoprocessing
routines piggybacked onto it is now running.
My problem stemmed from the fact that the Makefile for postgis needed to
have a reference for "gpc.o" in it, in order for it to be declared in
libpostgis.so.0.7. Running postmaster from the command line, not
backgrounded, yielded the appropriate error message which allowed me to
figure this out. I am fairly un-familiar with Makefile's etc., so this
was a mistake I made.
In my breif testing thus far, I have performed an intersection with 2
shapes, one containing 4 points, the other with over 80, and the
resultant was in the 80 point range.

I don;t know if anyone else will find this useful, but it was compiled
on a redhat 7.0 box, postgis 0.7, and postgres 7.2, 233 Mhz machine with
64 Megs of ram. The aforementioned intersection completed in the order
of magnitude of 10ths of a second.


Robert Burgholzer
Graduate Research Assistant
Virginia Tech Department of Biological Systems Engineering







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