mirror of
https://github.com/postgres/postgres.git
synced 2025-07-28 23:42:10 +03:00
The attached adds GRANTs to PUBLIC for dblink functions, removes the
non-standard regression test, and adds standard installcheck regression test support. The test creates a second database (regression_slave) and drops it again, in order to avoid the cheesy-ness of connecting back to the same database ;-) Joe Conway
This commit is contained in:
Tom Lane
259
contrib/dblink/expected/dblink.out
Normal file
259
contrib/dblink/expected/dblink.out
Normal file
@ -0,0 +1,259 @@
|
||||
--
|
||||
-- First, create a slave database and define the functions.
|
||||
-- Turn off echoing so that expected file does not depend on
|
||||
-- contents of dblink.sql.
|
||||
--
|
||||
CREATE DATABASE regression_slave;
|
||||
\connect regression_slave
|
||||
\set ECHO none
|
||||
create table foo(f1 int, f2 text, f3 text[], primary key (f1,f2));
|
||||
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'foo_pkey' for table 'foo'
|
||||
insert into foo values(0,'a','{"a0","b0","c0"}');
|
||||
insert into foo values(1,'b','{"a1","b1","c1"}');
|
||||
insert into foo values(2,'c','{"a2","b2","c2"}');
|
||||
insert into foo values(3,'d','{"a3","b3","c3"}');
|
||||
insert into foo values(4,'e','{"a4","b4","c4"}');
|
||||
insert into foo values(5,'f','{"a5","b5","c5"}');
|
||||
insert into foo values(6,'g','{"a6","b6","c6"}');
|
||||
insert into foo values(7,'h','{"a7","b7","c7"}');
|
||||
insert into foo values(8,'i','{"a8","b8","c8"}');
|
||||
insert into foo values(9,'j','{"a9","b9","c9"}');
|
||||
-- misc utilities
|
||||
-- show the currently executing query
|
||||
select 'hello' as hello, dblink_current_query() as query;
|
||||
hello | query
|
||||
-------+-----------------------------------------------------------
|
||||
hello | select 'hello' as hello, dblink_current_query() as query;
|
||||
(1 row)
|
||||
|
||||
-- list the primary key fields
|
||||
select * from dblink_get_pkey('foo');
|
||||
position | colname
|
||||
----------+---------
|
||||
1 | f1
|
||||
2 | f2
|
||||
(2 rows)
|
||||
|
||||
-- build an insert statement based on a local tuple,
|
||||
-- replacing the primary key values with new ones
|
||||
select dblink_build_sql_insert('foo','1 2',2,'{"0", "a"}','{"99", "xyz"}');
|
||||
dblink_build_sql_insert
|
||||
-----------------------------------------------------------
|
||||
INSERT INTO foo(f1,f2,f3) VALUES('99','xyz','{a0,b0,c0}')
|
||||
(1 row)
|
||||
|
||||
-- build an update statement based on a local tuple,
|
||||
-- replacing the primary key values with new ones
|
||||
select dblink_build_sql_update('foo','1 2',2,'{"0", "a"}','{"99", "xyz"}');
|
||||
dblink_build_sql_update
|
||||
----------------------------------------------------------------------------------------
|
||||
UPDATE foo SET f1 = '99', f2 = 'xyz', f3 = '{a0,b0,c0}' WHERE f1 = '99' AND f2 = 'xyz'
|
||||
(1 row)
|
||||
|
||||
-- build a delete statement based on a local tuple,
|
||||
select dblink_build_sql_delete('foo','1 2',2,'{"0", "a"}');
|
||||
dblink_build_sql_delete
|
||||
---------------------------------------------
|
||||
DELETE FROM foo WHERE f1 = '0' AND f2 = 'a'
|
||||
(1 row)
|
||||
|
||||
--
|
||||
-- Connect back to the regression database and define the functions.
|
||||
-- Turn off echoing so that expected file does not depend on
|
||||
-- contents of dblink.sql.
|
||||
--
|
||||
\connect regression
|
||||
\set ECHO none
|
||||
-- regular old dblink
|
||||
select * from dblink('dbname=regression_slave','select * from foo') as t(a int, b text, c text[]) where t.a > 7;
|
||||
a | b | c
|
||||
---+---+------------
|
||||
8 | i | {a8,b8,c8}
|
||||
9 | j | {a9,b9,c9}
|
||||
(2 rows)
|
||||
|
||||
-- should generate "no connection available" error
|
||||
select * from dblink('select * from foo') as t(a int, b text, c text[]) where t.a > 7;
|
||||
ERROR: dblink: no connection available
|
||||
-- create a persistent connection
|
||||
select dblink_connect('dbname=regression_slave');
|
||||
dblink_connect
|
||||
----------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- use the persistent connection
|
||||
select * from dblink('select * from foo') as t(a int, b text, c text[]) where t.a > 7;
|
||||
a | b | c
|
||||
---+---+------------
|
||||
8 | i | {a8,b8,c8}
|
||||
9 | j | {a9,b9,c9}
|
||||
(2 rows)
|
||||
|
||||
-- open a cursor
|
||||
select dblink_open('rmt_foo_cursor','select * from foo');
|
||||
dblink_open
|
||||
-------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- fetch some data
|
||||
select * from dblink_fetch('rmt_foo_cursor',4) 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 rows)
|
||||
|
||||
select * from dblink_fetch('rmt_foo_cursor',4) as t(a int, b text, c text[]);
|
||||
a | b | c
|
||||
---+---+------------
|
||||
4 | e | {a4,b4,c4}
|
||||
5 | f | {a5,b5,c5}
|
||||
6 | g | {a6,b6,c6}
|
||||
7 | h | {a7,b7,c7}
|
||||
(4 rows)
|
||||
|
||||
-- this one only finds two rows left
|
||||
select * from dblink_fetch('rmt_foo_cursor',4) as t(a int, b text, c text[]);
|
||||
a | b | c
|
||||
---+---+------------
|
||||
8 | i | {a8,b8,c8}
|
||||
9 | j | {a9,b9,c9}
|
||||
(2 rows)
|
||||
|
||||
-- close the cursor
|
||||
select dblink_close('rmt_foo_cursor');
|
||||
dblink_close
|
||||
--------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- should generate "cursor rmt_foo_cursor does not exist" error
|
||||
select * from dblink_fetch('rmt_foo_cursor',4) as t(a int, b text, c text[]);
|
||||
ERROR: dblink_fetch: cursor rmt_foo_cursor does not exist
|
||||
-- close the persistent connection
|
||||
select dblink_disconnect();
|
||||
dblink_disconnect
|
||||
-------------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- should generate "no connection available" error
|
||||
select * from dblink('select * from foo') as t(a int, b text, c text[]) where t.a > 7;
|
||||
ERROR: dblink: no connection available
|
||||
-- put more data into our slave table, first using arbitrary connection syntax
|
||||
-- but truncate the actual return value so we can use diff to check for success
|
||||
select substr(dblink_exec('dbname=regression_slave','insert into foo values(10,''k'',''{"a10","b10","c10"}'')'),1,6);
|
||||
substr
|
||||
--------
|
||||
INSERT
|
||||
(1 row)
|
||||
|
||||
-- create a persistent connection
|
||||
select dblink_connect('dbname=regression_slave');
|
||||
dblink_connect
|
||||
----------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- put more data into our slave table, using persistent connection syntax
|
||||
-- but truncate the actual return value so we can use diff to check for success
|
||||
select substr(dblink_exec('insert into foo values(11,''l'',''{"a11","b11","c11"}'')'),1,6);
|
||||
substr
|
||||
--------
|
||||
INSERT
|
||||
(1 row)
|
||||
|
||||
-- let's see it
|
||||
select * from dblink('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 | l | {a11,b11,c11}
|
||||
(12 rows)
|
||||
|
||||
-- change some data
|
||||
select dblink_exec('update foo set f3[2] = ''b99'' where f1 = 11');
|
||||
dblink_exec
|
||||
-------------
|
||||
UPDATE 1
|
||||
(1 row)
|
||||
|
||||
-- let's see it
|
||||
select * from dblink('select * from foo') as t(a int, b text, c text[]) where a = 11;
|
||||
a | b | c
|
||||
----+---+---------------
|
||||
11 | l | {a11,b99,c11}
|
||||
(1 row)
|
||||
|
||||
-- delete some data
|
||||
select dblink_exec('delete from foo where f1 = 11');
|
||||
dblink_exec
|
||||
-------------
|
||||
DELETE 1
|
||||
(1 row)
|
||||
|
||||
-- let's see it
|
||||
select * from dblink('select * from foo') as t(a int, b text, c text[]) where a = 11;
|
||||
a | b | c
|
||||
---+---+---
|
||||
(0 rows)
|
||||
|
||||
-- close the persistent connection
|
||||
select dblink_disconnect();
|
||||
dblink_disconnect
|
||||
-------------------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- now wait for the connection to the slave to be cleared before
|
||||
-- we try to drop the database
|
||||
CREATE FUNCTION wait() RETURNS TEXT AS '
|
||||
DECLARE
|
||||
rec record;
|
||||
cntr int;
|
||||
BEGIN
|
||||
cntr = 0;
|
||||
|
||||
select into rec d.datname
|
||||
from pg_database d,
|
||||
(select pg_stat_get_backend_dbid(pg_stat_get_backend_idset()) AS dbid) b
|
||||
where d.oid = b.dbid and d.datname = ''regression_slave'';
|
||||
|
||||
WHILE FOUND LOOP
|
||||
cntr = cntr + 1;
|
||||
|
||||
select into rec d.datname
|
||||
from pg_database d,
|
||||
(select pg_stat_get_backend_dbid(pg_stat_get_backend_idset()) AS dbid) b
|
||||
where d.oid = b.dbid and d.datname = ''regression_slave'';
|
||||
|
||||
-- safety valve
|
||||
if cntr > 1000 THEN
|
||||
EXIT;
|
||||
end if;
|
||||
END LOOP;
|
||||
RETURN ''OK'';
|
||||
END;
|
||||
' LANGUAGE 'plpgsql';
|
||||
SELECT wait();
|
||||
wait
|
||||
------
|
||||
OK
|
||||
(1 row)
|
||||
|
||||
-- OK, safe to drop the slave
|
||||
DROP DATABASE regression_slave;
|
||||
Reference in New Issue
Block a user