Error for insert large object

Hello all world,

I work on a project c# with a postgresql database. The communication is made by the odbc driver. The select command is OK but I have a problem for insert an Image in my table.

The script of creation of my table is as follows:

CREATE TABLE images

(

  id_image int4 NOT NULL,

  image bytea,

  CONSTRAINT id_image PRIMARY KEY (id_image)

)

WITH OIDS;

ALTER TABLE images OWNER TO postgres;

When I want insert data, I have an error how is generate by de odbc driver. This error is “type "lo" does not exist »

How create a large object with odbc driver in C# ?

Can you help me please? It’s very important for my project actually.

Sorry, I’m French and my English is not perfectly, I hope that you think.

Vincent Lemaire