'Relation already exists' error in pgrouting

Question

I am creating a TABLE with the following sql:

-- Table: buildings

-- DROP TABLE buildings;

CREATE TABLE buildings
(

osm_id integer NOT NULL,

"name" character varying(255),

"type" character varying(255),

"geometry" geometry,

CONSTRAINT enforce_dims_geometry CHECK (st_ndims(geometry) = 2)

)

WITH (

OIDS=FALSE

);

ALTER TABLE buildings OWNER TO "user";

And Afterwards, trying to fill the table with data from another table with this:

    SELECT osm_id, way

INTO buildings

FROM planet_osm_polygon

WHERE building='yes'

And I get the following error:

ERROR: relation "buildings" already exists

*** Error ***

ERROR: relation "buildings" already exists SQL state: 42P07

Any idea as to why this might be the case? I'm new to pgrouting and trying to figure out how to proceed.

Thanks!

Answer 1

Your command

SELECT osm_id, way

INTO buildings

FROM planet_osm_polygon

WHERE building='yes'

is creating table buildings which has been already created, that's why your getting this error. Please refer this link for more information