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Added async query capability. Original patch by

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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
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29
contrib/dblink/sql/dblink.sql
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@ -319,3 +319,32 @@ SELECT dblink_disconnect('myconn');
-- close the named persistent connection again
-- should get 'connection "myconn" not available' error
SELECT dblink_disconnect('myconn');
-- test asynchronous queries
SELECT dblink_connect('dtest1', 'dbname=contrib_regression');
SELECT * from
dblink_send_query('dtest1', 'select * from foo where f1 < 3') as t1;
SELECT dblink_connect('dtest2', 'dbname=contrib_regression');
SELECT * from
dblink_send_query('dtest2', 'select * from foo where f1 > 2 and f1 < 7') as t1;
SELECT dblink_connect('dtest3', 'dbname=contrib_regression');
SELECT * from
dblink_send_query('dtest3', 'select * from foo where f1 > 6') as t1;
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();
SELECT dblink_disconnect('dtest1');
SELECT dblink_disconnect('dtest2');
SELECT dblink_disconnect('dtest3');
SELECT * from result;