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Add support for using SQL/MED compliant FOREIGN DATA WRAPPER, SERVER,

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and USER MAPPING as method to supply dblink connect parameters. Per
mailing list and PGCon discussions.
This commit is contained in:
Joe Conway
2009-06-06 21:27:56 +00:00
parent af98bb2ad7
commit 4334695b30
4 changed files with 228 additions and 5 deletions
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43
contrib/dblink/expected/dblink.out
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@ -784,3 +784,46 @@ SELECT dblink_disconnect('dtest1');
OK
(1 row)
-- test foreign data wrapper functionality
CREATE USER dblink_regression_test;
CREATE FOREIGN DATA WRAPPER postgresql;
CREATE SERVER fdtest FOREIGN DATA WRAPPER postgresql OPTIONS (dbname 'contrib_regression');
CREATE USER MAPPING FOR public SERVER fdtest;
GRANT USAGE ON FOREIGN SERVER fdtest TO dblink_regression_test;
GRANT EXECUTE ON FUNCTION dblink_connect_u(text, text) TO dblink_regression_test;
\set ORIGINAL_USER :USER
\c - dblink_regression_test
-- should fail
SELECT dblink_connect('myconn', 'fdtest');
ERROR: password is required
DETAIL: Non-superusers must provide a password in the connection string.
-- should succeed
SELECT dblink_connect_u('myconn', 'fdtest');
dblink_connect_u
------------------
OK
(1 row)
SELECT * FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]);
a | b | c
----+---+---------------
0 | a | {a0,b0,c0}
1 | b | {a1,b1,c1}
2 | c | {a2,b2,c2}
3 | d | {a3,b3,c3}
4 | e | {a4,b4,c4}
5 | f | {a5,b5,c5}
6 | g | {a6,b6,c6}
7 | h | {a7,b7,c7}
8 | i | {a8,b8,c8}
9 | j | {a9,b9,c9}
10 | k | {a10,b10,c10}
(11 rows)
\c - :ORIGINAL_USER
REVOKE USAGE ON FOREIGN SERVER fdtest FROM dblink_regression_test;
REVOKE EXECUTE ON FUNCTION dblink_connect_u(text, text) FROM dblink_regression_test;
DROP USER dblink_regression_test;
DROP USER MAPPING FOR public SERVER fdtest;
DROP SERVER fdtest;
DROP FOREIGN DATA WRAPPER postgresql;