RES: RES: Foreign PostgreSQL server - Mailing list pgsql-general

Thanks Adrian, I really miss that part...
Anyway, if I try to declare a handler like

CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator
HANDLER postgresql_fdw_handler;

(as found on Wiki) I get error

“ERROR:  function postgresql_fdw_handler() does not exists”

I’m definitely missing something...

What is the way to go?

Edson.


De: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] Em nome de Adrian Klaver
Enviada em: sexta-feira, 16 de setembro de 2011 23:30
Para: pgsql-general@postgresql.org
Cc: Edson Carlos Ericksson Richter
Assunto: Re: RES: [GENERAL] Foreign PostgreSQL server

On Friday, September 16, 2011 4:03:03 pm Edson Carlos Ericksson Richter
wrote:
> Ok, managed to get the first part working:
>
>
---------------------------------------------------------------------------
> create extension dblink;
> CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator;
> CREATE SERVER simfrete02 FOREIGN DATA WRAPPER postgresql OPTIONS (host
> '127.0.0.1', dbname 'simfrete', port '5432');
> CREATE FOREIGN TABLE emp02 (ID integer NOT NULL, NOME varchar(100) NOT
> NULL) SERVER simfrete02;
> select * from usuario join emp02 on usuario.empresa_id = emp02.id;
>
---------------------------------------------------------------------------
> This error relates to the "select ..." part of the script above:
>
> ERRO:  foreign-data wrapper "postgresql" has no handler
> ********** Error **********
> ERRO: foreign-data wrapper "postgresql" has no handler
> SQL state: 55000

You did not specify a handler for the FDW postgresql and per the Docs:

http://www.postgresql.org/docs/9.1/interactive/sql-createforeigndatawrapper.
html

"It is possible to create a foreign-data wrapper with no handler function,
but
foreign tables using such a wrapper can only be declared, not accessed. "


>
>
> If I remove the "select ...", then the script runs without any error.
>
> What then?
>
>
> Thanks for your support,
>
> Edson Richter

--
Adrian Klaver
adrian.klaver@gmail.com

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