Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm using PostGIS to add geometry columns to tables, but keep receiving the error:

ERROR: function addgeometrycolumn(character varying, character varying, integer, character varying, integer) is not unique
SQL state: 42725
Hint: Could not choose a best candidate function. You might need to add explicit type casts.

The statement I am trying to call is:

SELECT addGeometryColumn('schema', 'table', 'geom', 3857, 'POINT', 2);

I have tried type-casting each argument but I received the same message. I have also removed and re-installed the postgis extension, which made no difference.

I have used this function countless times before and am somewhat puzzled as to why it isn't working all of a sudden. I have also tried a few other postgis functions which gave me similar errors.

I am considering reinstalling postgresql/postgis but I will have to spend time reconfiguring the set-up so I am hoping there is an easier way to fix/get around this.

Does anybody have any advice as to what may be causing this?

share|improve this question
2  
duplicate: stackoverflow.com/questions/12331981/… – mkennedy Jun 14 '13 at 21:04

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.