[postgis-users] Adding Spatial Index to Existing Table

[Adam]

If I run without any quotes I get this error:
ERROR:  function makepoint(character varying, character varying) does not 
exist
HINT:  No function matches the given name and argument types. You may need 
to add explicit type casts.

If I run with double quotes I get this error:
ERROR:  function makepoint(character varying, character varying) does not 
exist
HINT:  No function matches the given name and argument types. You may need 
to add explicit type casts.

Any other ideas as to what the problem is?

I looked up "MakePoint" in my functions and it is there:

      Function Arguments Returns Programming language
      makepoint double precision, double precision geometry c
      Object File Link Symbol
      $libdir/liblwgeom.so.1.1 LWGEOM_makepoint
      Properties
      IMMUTABLE
      RETURNS NULL ON NULL INPUT
      SECURITY INVOKER


----- Original Message ----- 
From: "Gregory S. Williamson" <gsw at globexplorer.com>
To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>; 
"PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
Sent: Friday, December 29, 2006 11:02 PM
Subject: RE: [postgis-users] Adding Spatial Index to Existing Table


If you single quote something PostgreSQL will interpet it as a string ... 
since they are lower case anyway, try not quoting them at all, of double 
quote them if you need to preserve case:
UPDATE locations SET point_geom = SetSRID(makepoint(longitude,latitude), 
4326);

Or:
UPDATE locations SET point_geom = SetSRID(makepoint("longitude","latitude"), 
4326);

G

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net on behalf of Adam
Sent: Fri 12/29/2006 8:57 PM
To: PostGIS Users Discussion
Cc:
Subject: Re: [postgis-users] Adding Spatial Index to Existing Table

I tried: UPDATE locations SET point_geom = 
SetSRID(makepoint('longitude','latitude'), 4326);
but got this error:
ERROR:  invalid input syntax for type double precision: "longitude"Could the 
problem be that my "longitude" column is type "Character Varying"?-----  
Original Message ----- 
  From: Brad Ediger
  To: PostGIS Users Discussion
  Sent: Friday, December 29, 2006 1:18 PM
  Subject: Re: [postgis-users] Adding Spatial Index to Existing Table


  If your lat/longs are WGS84, you should be able to say:



  UPDATE table SET location = SetSRID(MakePoint(Long,Lat), 4326);


  That should update all points in one statement, and set the proper SRID.


  Brad


  On Dec 29, 2006, at 1:08 PM, Adam wrote:


    This is my first try at adding spatial to my table.  Currently I have a 
'Lat' and 'Long' columns that have my Latitiude and Longitude.

    Do I need to add another column named 'Location' and insert each rows 
'Lat' and 'Long' into the corresponding 'Location' row by doing:  "INSERT 
INTO table ( Location ) VALUES ( GeometryFromText('Point xx.xxx yy.yyyy', 
4326) )" ?  This will assume WGS 84 datum.

    Is this right?
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