[postgis-users] Many Funktions does not exist

[Michael Schiller]

Hello, 
 
there are many Funktions that does not exist. 
  
There are two Examples: 
 
  
SELECT equals(geom, GeometryFromText('POINT(0 0)', -1)) from test; 
 
ERROR:  Function 'equals(geometry, geometry)' does not exist 
        Unable to identify a function that satisfies the given argument
types 
        You may need to add explicit typecasts 
 
 
SELECT IsEmpty(geom) from test; 
 
ERROR:  Function 'isempty(geometry)' does not exist 
        Unable to identify a function that satisfies the given argument
types 
        You may need to add explicit typecasts 
 
 
I didn't know why this Funktion's doesn't exist. Other Funktion's how
Distance, Envelope or Area can i 
use. 
 
I use postgis-0.7.4 
 
And i'm sorry for my bad english 
 
thanks 

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