Обсуждение: BUG #8901: postgres_fdw double-qualifying schemas

The following bug has been logged on the website:

Bug reference:      8901
Logged by:          Alex
Email address:      byteslayer7@gmail.com
PostgreSQL version: 9.3.2
Operating system:   Windows 7
Description:

I posted a question on Stackoverflow regarding postgres_fdw. I was advised
to report it here and link to it:
http://stackoverflow.com/q/21193642/797021.

In short, the issue is that this psql input:
CREATE USER test_user SUPERUSER PASSWORD 'password';
SET ROLE test_user;
CREATE DATABASE import;
CREATE DATABASE export;
\c export test_user
CREATE SCHEMA export_schema;
CREATE TABLE export_schema.aa (
    id serial PRIMARY KEY,
    dat text
);
\c import test_user
CREATE EXTENSION postgres_fdw;
CREATE SERVER export_server
    FOREIGN DATA WRAPPER postgres_fdw
    OPTIONS (host 'localhost', dbname 'export', port '5432');
CREATE USER MAPPING FOR test_user
    SERVER export_server
    OPTIONS (user 'test_user', password 'password');
CREATE SCHEMA import_schema;
CREATE FOREIGN TABLE import_schema.aa(
    id serial NOT NULL,
    dat text
) SERVER export_server OPTIONS (table_name 'export_schema.aa');
SELECT * FROM import_schema.aa;

Which I expect to work, instead gives this error:

ERROR:  relation "import_schema.export_schema.aa" does not exist
CONTEXT:  Remote SQL command: SELECT id, dat FROM
import_schema."export_schema.aa"

* byteslayer7@gmail.com (byteslayer7@gmail.com) wrote:
> I posted a question on Stackoverflow regarding postgres_fdw. I was advised
> to report it here and link to it:
[...]
> ) SERVER export_server OPTIONS (table_name 'export_schema.aa');
> SELECT * FROM import_schema.aa;
>=20
> Which I expect to work, instead gives this error:=20

Use: OPTIONS (schema_name 'export_schema' table_name 'aa'); above.

    Thanks,

        Stephen

Stephen Frost <sfrost@snowman.net> writes:
> * byteslayer7@gmail.com (byteslayer7@gmail.com) wrote:
>> I posted a question on Stackoverflow regarding postgres_fdw. I was advised
>> to report it here and link to it:
>> [...]
>> ) SERVER export_server OPTIONS (table_name 'export_schema.aa');
>> SELECT * FROM import_schema.aa;
>>
>> Which I expect to work, instead gives this error:

> Use: OPTIONS (schema_name 'export_schema' table_name 'aa'); above.

This is documented in the postgres_fdw reference page, but I notice that
page has absolutely no examples.  A concrete example or two might help
perhaps.  Anybody feel like working up a patch?

            regards, tom lane