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I'm trying to import WKT (http://polygons.openstreetmap.fr/get_wkt.py?id=2413177&params=0 - boundary of one of districts of Łódź) into PostGIS database and convert it to geometry. I've created table 'districts' with 'the_geom geometry', id and name of the district. When I tried to insert data with

INSERT INTO districts (name, the_geom) VALUES ('Polesie', ST_GeomFromText('<<<WKT goes here>>>', 4326))

the the_geom field is left empty. In fact, even query like SELECT ST_GeomFromText('...', 4326) returns empty query. I also tried to create text field in the table, insert WKT data in there and then run UPDATE districts SET the_geom=ST_GeomFromText('...', 4326) but it doesn't work. I tried to use query from http://www.postgis.org/docs/ST_GeomFromText.html and it worked.

Could anyone help me with this one? Am I doing something wrong, or the WKT is just too big?

Definition of my table:

CREATE TABLE dzielnice
(
  name character varying(30),
  the_geom geometry,
  wkt text,
  id bigserial NOT NULL,
  CONSTRAINT dzielnice_pkey PRIMARY KEY (id),
  CONSTRAINT dzielnice_id_key UNIQUE (id)
)
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  • 1
    Have you tried "VALUES" in your insert? – user30184 Apr 27 '15 at 4:38
  • Sorry, I corrected that. I used VALUES of course, VALUE would throw an error AFAIR. Still, even SELECT ST_GeomFromText('...', 4326) doesn't work, and that's probably the simplest query you can make. I tried with different WKT (simple POINT and some small multipolygon) and my query worked perfectly. – Maciek Apr 27 '15 at 7:22
  • If SELECT ST_GeomFromText('POINT (1 1)',4326);does not return anything you must have something wrong in your installation. – user30184 Apr 27 '15 at 8:27
2

Do you get any error message? If not, there is no error and your data is there. It is just a limit how much data pgAdmin shows.

You can increase that value in options, I think default is 256 bytes or characters.

You can check if your geoemtry is there for instance by querying number of points

ST_Npoints(the_geom)

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