[postgis-users] Usage of Transform() function in a query.
David.Jacques at CCRS.NRCan.gc.ca
David.Jacques at CCRS.NRCan.gc.ca
Wed Feb 2 05:02:57 PST 2005
I need to reproject a spatial table from one SRID to another
Both the source and destination SRIDs are in the SPATIAL_REF_SYS table.
I've consulted the manual and the following is presented...
SELECT transform(GEOM,4269) FROM GEOTABLE
Here is the exact query
SELECT transform(the_geom,42304) FROM xxmodishotspots;
What I get is all records consisting of 1 column called "transform" with all
null values.
I expected to get the same output as SELECT * from xxmodishotspots; would
produce, with
the exception being that "the_geom" column would contain a value like
SRID=42304;POINT(-552256.351008368 22239.2415119158)
instead of
SRID=4269;POINT(-90.673 69.4310000006199)
Does anyone have a better example than the manual ? I can't see what I am
doing wrong.
Thanks in advance..
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