database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Added async query capability. Original patch by

Browse Source 
Kai Londenberg, modified by Joe Conway
This commit is contained in:
Joe Conway
2006-09-02 21:11:15 +00:00
parent 1cc9299a7a
commit 52a3ed9fac
8 changed files with 688 additions and 168 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
contrib/dblink/expected/dblink.out
View File

@ -669,3 +669,90 @@ SELECT dblink_disconnect('myconn');
-- should get 'connection "myconn" not available' error
SELECT dblink_disconnect('myconn');
ERROR: connection "myconn" not available
-- test asynchronous queries
SELECT dblink_connect('dtest1', 'dbname=contrib_regression');
dblink_connect
----------------
OK
(1 row)
SELECT * from
dblink_send_query('dtest1', 'select * from foo where f1 < 3') as t1;
t1
----
1
(1 row)
SELECT dblink_connect('dtest2', 'dbname=contrib_regression');
dblink_connect
----------------
OK
(1 row)
SELECT * from
dblink_send_query('dtest2', 'select * from foo where f1 > 2 and f1 < 7') as t1;
t1
----
1
(1 row)
SELECT dblink_connect('dtest3', 'dbname=contrib_regression');
dblink_connect
----------------
OK
(1 row)
SELECT * from
dblink_send_query('dtest3', 'select * from foo where f1 > 6') as t1;
t1
----
1
(1 row)
CREATE TEMPORARY TABLE result AS
(SELECT * from dblink_get_result('dtest1') as t1(f1 int, f2 text, f3 text[]))
UNION
(SELECT * from dblink_get_result('dtest2') as t2(f1 int, f2 text, f3 text[]))
UNION
(SELECT * from dblink_get_result('dtest3') as t3(f1 int, f2 text, f3 text[]))
ORDER by f1;
SELECT dblink_get_connections();
dblink_get_connections
------------------------
{dtest1,dtest2,dtest3}
(1 row)
SELECT dblink_disconnect('dtest1');
dblink_disconnect
-------------------
OK
(1 row)
SELECT dblink_disconnect('dtest2');
dblink_disconnect
-------------------
OK
(1 row)
SELECT dblink_disconnect('dtest3');
dblink_disconnect
-------------------
OK
(1 row)
SELECT * from result;
f1 | f2 | f3
----+----+---------------
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)