diff options
Diffstat (limited to 'contrib/dblink/sql')
| -rw-r--r-- | contrib/dblink/sql/.gitignore | 1 | ||||
| -rw-r--r-- | contrib/dblink/sql/dblink.sql | 603 |
2 files changed, 604 insertions, 0 deletions
diff --git a/contrib/dblink/sql/.gitignore b/contrib/dblink/sql/.gitignore new file mode 100644 index 0000000..d175078 --- /dev/null +++ b/contrib/dblink/sql/.gitignore @@ -0,0 +1 @@ +/paths.sql diff --git a/contrib/dblink/sql/dblink.sql b/contrib/dblink/sql/dblink.sql new file mode 100644 index 0000000..3e96b98 --- /dev/null +++ b/contrib/dblink/sql/dblink.sql @@ -0,0 +1,603 @@ +CREATE EXTENSION dblink; + +-- want context for notices +\set SHOW_CONTEXT always + +CREATE TABLE foo(f1 int, f2 text, f3 text[], primary key (f1,f2)); +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 + +-- list the primary key fields +SELECT * +FROM dblink_get_pkey('foo'); + +-- 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"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_insert('foo','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}','{"99", "xyz", "{za0,zb0,zc0}"}'); + +-- 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"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_update('foo','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}','{"99", "xyz", "{za0,zb0,zc0}"}'); + +-- build a delete statement based on a local tuple, +SELECT dblink_build_sql_delete('foo','1 2',2,'{"0", "a"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_delete('foo','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}'); + +-- repeat the test for table with primary key index with included columns +CREATE TABLE foo_1(f1 int, f2 text, f3 text[], primary key (f1,f2) include (f3)); +INSERT INTO foo_1 VALUES (0,'a','{"a0","b0","c0"}'); +INSERT INTO foo_1 VALUES (1,'b','{"a1","b1","c1"}'); +INSERT INTO foo_1 VALUES (2,'c','{"a2","b2","c2"}'); +INSERT INTO foo_1 VALUES (3,'d','{"a3","b3","c3"}'); +INSERT INTO foo_1 VALUES (4,'e','{"a4","b4","c4"}'); +INSERT INTO foo_1 VALUES (5,'f','{"a5","b5","c5"}'); +INSERT INTO foo_1 VALUES (6,'g','{"a6","b6","c6"}'); +INSERT INTO foo_1 VALUES (7,'h','{"a7","b7","c7"}'); +INSERT INTO foo_1 VALUES (8,'i','{"a8","b8","c8"}'); +INSERT INTO foo_1 VALUES (9,'j','{"a9","b9","c9"}'); + +-- misc utilities + +-- list the primary key fields +SELECT * +FROM dblink_get_pkey('foo_1'); + +-- build an insert statement based on a local tuple, +-- replacing the primary key values with new ones +SELECT dblink_build_sql_insert('foo_1','1 2',2,'{"0", "a"}','{"99", "xyz"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_insert('foo_1','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}','{"99", "xyz", "{za0,zb0,zc0}"}'); + +-- build an update statement based on a local tuple, +-- replacing the primary key values with new ones +SELECT dblink_build_sql_update('foo_1','1 2',2,'{"0", "a"}','{"99", "xyz"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_update('foo_1','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}','{"99", "xyz", "{za0,zb0,zc0}"}'); + +-- build a delete statement based on a local tuple, +SELECT dblink_build_sql_delete('foo_1','1 2',2,'{"0", "a"}'); +-- too many pk fields, should fail +SELECT dblink_build_sql_delete('foo_1','1 2 3 4',4,'{"0", "a", "{a0,b0,c0}"}'); + +DROP TABLE foo_1; + +-- retest using a quoted and schema qualified table +CREATE SCHEMA "MySchema"; +CREATE TABLE "MySchema"."Foo"(f1 int, f2 text, f3 text[], primary key (f1,f2)); +INSERT INTO "MySchema"."Foo" VALUES (0,'a','{"a0","b0","c0"}'); + +-- list the primary key fields +SELECT * +FROM dblink_get_pkey('"MySchema"."Foo"'); + +-- build an insert statement based on a local tuple, +-- replacing the primary key values with new ones +SELECT dblink_build_sql_insert('"MySchema"."Foo"','1 2',2,'{"0", "a"}','{"99", "xyz"}'); + +-- build an update statement based on a local tuple, +-- replacing the primary key values with new ones +SELECT dblink_build_sql_update('"MySchema"."Foo"','1 2',2,'{"0", "a"}','{"99", "xyz"}'); + +-- build a delete statement based on a local tuple, +SELECT dblink_build_sql_delete('"MySchema"."Foo"','1 2',2,'{"0", "a"}'); + +CREATE FUNCTION connection_parameters() RETURNS text LANGUAGE SQL AS $f$ + SELECT $$dbname='$$||current_database()||$$' port=$$||current_setting('port'); +$f$; + +-- regular old dblink +SELECT * +FROM dblink(connection_parameters(),'SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- should generate "connection not available" error +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- The first-level connection's backend will crash on exit given OpenLDAP +-- [2.4.24, 2.4.31]. We won't see evidence of any crash until the victim +-- process terminates and the postmaster responds. If process termination +-- entails writing a core dump, that can take awhile. Wait for the process to +-- vanish. At that point, the postmaster has called waitpid() on the crashed +-- process, and it will accept no new connections until it has reinitialized +-- the cluster. (We can't exploit pg_stat_activity, because the crash happens +-- after the backend updates shared memory to reflect its impending exit.) +DO $pl$ +DECLARE + detail text; +BEGIN + PERFORM wait_pid(crash_pid) + FROM dblink(connection_parameters(), $$ + SELECT pg_backend_pid() FROM dblink( + 'service=test_ldap '||connection_parameters(), + -- This string concatenation is a hack to shoehorn a + -- set_pgservicefile call into the SQL statement. + 'SELECT 1' || set_pgservicefile('pg_service.conf') + ) t(c int) + $$) AS t(crash_pid int); +EXCEPTION WHEN OTHERS THEN + GET STACKED DIAGNOSTICS detail = PG_EXCEPTION_DETAIL; + -- Expected error in a non-LDAP build. + IF NOT detail LIKE 'syntax error in service file%' THEN RAISE; END IF; +END +$pl$; + +-- create a persistent connection +SELECT dblink_connect(connection_parameters()); + +-- use the persistent connection +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- open a cursor with bad SQL and fail_on_error set to false +SELECT dblink_open('rmt_foo_cursor','SELECT * FROM foobar',false); + +-- reset remote transaction state +SELECT dblink_exec('ABORT'); + +-- open a cursor +SELECT dblink_open('rmt_foo_cursor','SELECT * FROM foo'); + +-- close the cursor +SELECT dblink_close('rmt_foo_cursor',false); + +-- open the cursor again +SELECT dblink_open('rmt_foo_cursor','SELECT * FROM foo'); + +-- fetch some data +SELECT * +FROM dblink_fetch('rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +SELECT * +FROM dblink_fetch('rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- this one only finds two rows left +SELECT * +FROM dblink_fetch('rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- intentionally botch a fetch +SELECT * +FROM dblink_fetch('rmt_foobar_cursor',4,false) AS t(a int, b text, c text[]); + +-- reset remote transaction state +SELECT dblink_exec('ABORT'); + +-- close the wrong cursor +SELECT dblink_close('rmt_foobar_cursor',false); + +-- should generate 'cursor "rmt_foo_cursor" not found' error +SELECT * +FROM dblink_fetch('rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- this time, 'cursor "rmt_foo_cursor" not found' as a notice +SELECT * +FROM dblink_fetch('rmt_foo_cursor',4,false) AS t(a int, b text, c text[]); + +-- close the persistent connection +SELECT dblink_disconnect(); + +-- should generate "connection not available" error +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- put more data into our 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(connection_parameters(),'INSERT INTO foo VALUES(10,''k'',''{"a10","b10","c10"}'')'),1,6); + +-- create a persistent connection +SELECT dblink_connect(connection_parameters()); + +-- put more data into our 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); + +-- let's see it +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]); + +-- bad remote select +SELECT * +FROM dblink('SELECT * FROM foobar',false) AS t(a int, b text, c text[]); + +-- change some data +SELECT dblink_exec('UPDATE foo SET f3[2] = ''b99'' WHERE f1 = 11'); + +-- let's see it +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE a = 11; + +-- botch a change to some other data +SELECT dblink_exec('UPDATE foobar SET f3[2] = ''b99'' WHERE f1 = 11',false); + +-- delete some data +SELECT dblink_exec('DELETE FROM foo WHERE f1 = 11'); + +-- let's see it +SELECT * +FROM dblink('SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE a = 11; + +-- close the persistent connection +SELECT dblink_disconnect(); + +-- +-- tests for the new named persistent connection syntax +-- + +-- should generate "missing "=" after "myconn" in connection info string" error +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- create a named persistent connection +SELECT dblink_connect('myconn',connection_parameters()); + +-- use the named persistent connection +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- use the named persistent connection, but get it wrong +SELECT * +FROM dblink('myconn','SELECT * FROM foobar',false) AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- create a second named persistent connection +-- should error with "duplicate connection name" +SELECT dblink_connect('myconn',connection_parameters()); + +-- create a second named persistent connection with a new name +SELECT dblink_connect('myconn2',connection_parameters()); + +-- use the second named persistent connection +SELECT * +FROM dblink('myconn2','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- close the second named persistent connection +SELECT dblink_disconnect('myconn2'); + +-- open a cursor incorrectly +SELECT dblink_open('myconn','rmt_foo_cursor','SELECT * FROM foobar',false); + +-- reset remote transaction state +SELECT dblink_exec('myconn','ABORT'); + +-- test opening cursor in a transaction +SELECT dblink_exec('myconn','BEGIN'); + +-- an open transaction will prevent dblink_open() from opening its own +SELECT dblink_open('myconn','rmt_foo_cursor','SELECT * FROM foo'); + +-- this should not commit the transaction because the client opened it +SELECT dblink_close('myconn','rmt_foo_cursor'); + +-- this should succeed because we have an open transaction +SELECT dblink_exec('myconn','DECLARE xact_test CURSOR FOR SELECT * FROM foo'); + +-- commit remote transaction +SELECT dblink_exec('myconn','COMMIT'); + +-- test automatic transactions for multiple cursor opens +SELECT dblink_open('myconn','rmt_foo_cursor','SELECT * FROM foo'); + +-- the second cursor +SELECT dblink_open('myconn','rmt_foo_cursor2','SELECT * FROM foo'); + +-- this should not commit the transaction +SELECT dblink_close('myconn','rmt_foo_cursor2'); + +-- this should succeed because we have an open transaction +SELECT dblink_exec('myconn','DECLARE xact_test CURSOR FOR SELECT * FROM foo'); + +-- this should commit the transaction +SELECT dblink_close('myconn','rmt_foo_cursor'); + +-- this should fail because there is no open transaction +SELECT dblink_exec('myconn','DECLARE xact_test CURSOR FOR SELECT * FROM foo'); + +-- reset remote transaction state +SELECT dblink_exec('myconn','ABORT'); + +-- open a cursor +SELECT dblink_open('myconn','rmt_foo_cursor','SELECT * FROM foo'); + +-- fetch some data +SELECT * +FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +SELECT * +FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- this one only finds three rows left +SELECT * +FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- fetch some data incorrectly +SELECT * +FROM dblink_fetch('myconn','rmt_foobar_cursor',4,false) AS t(a int, b text, c text[]); + +-- reset remote transaction state +SELECT dblink_exec('myconn','ABORT'); + +-- should generate 'cursor "rmt_foo_cursor" not found' error +SELECT * +FROM dblink_fetch('myconn','rmt_foo_cursor',4) AS t(a int, b text, c text[]); + +-- close the named persistent connection +SELECT dblink_disconnect('myconn'); + +-- should generate "missing "=" after "myconn" in connection info string" error +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE t.a > 7; + +-- create a named persistent connection +SELECT dblink_connect('myconn',connection_parameters()); + +-- put more data into our table, using named persistent connection syntax +-- but truncate the actual return value so we can use diff to check for success +SELECT substr(dblink_exec('myconn','INSERT INTO foo VALUES(11,''l'',''{"a11","b11","c11"}'')'),1,6); + +-- let's see it +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]); + +-- change some data +SELECT dblink_exec('myconn','UPDATE foo SET f3[2] = ''b99'' WHERE f1 = 11'); + +-- let's see it +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE a = 11; + +-- delete some data +SELECT dblink_exec('myconn','DELETE FROM foo WHERE f1 = 11'); + +-- let's see it +SELECT * +FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]) +WHERE a = 11; + +-- close the named persistent connection +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', connection_parameters()); +SELECT * from + dblink_send_query('dtest1', 'select * from foo where f1 < 3') as t1; + +SELECT dblink_connect('dtest2', connection_parameters()); +SELECT * from + dblink_send_query('dtest2', 'select * from foo where f1 > 2 and f1 < 7') as t1; + +SELECT dblink_connect('dtest3', connection_parameters()); +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; + +-- dblink_get_connections returns an array with elements in a machine-dependent +-- ordering, so we must resort to unnesting and sorting for a stable result +create function unnest(anyarray) returns setof anyelement +language sql strict immutable as $$ +select $1[i] from generate_series(array_lower($1,1), array_upper($1,1)) as i +$$; + +SELECT * FROM unnest(dblink_get_connections()) ORDER BY 1; + +SELECT dblink_is_busy('dtest1'); + +SELECT dblink_disconnect('dtest1'); +SELECT dblink_disconnect('dtest2'); +SELECT dblink_disconnect('dtest3'); + +SELECT * from result; + +SELECT dblink_connect('dtest1', connection_parameters()); +SELECT * from + dblink_send_query('dtest1', 'select * from foo where f1 < 3') as t1; + +SELECT dblink_cancel_query('dtest1'); +SELECT dblink_error_message('dtest1'); +SELECT dblink_disconnect('dtest1'); + +-- test foreign data wrapper functionality +CREATE ROLE regress_dblink_user; +DO $d$ + BEGIN + EXECUTE $$CREATE SERVER fdtest FOREIGN DATA WRAPPER dblink_fdw + OPTIONS (dbname '$$||current_database()||$$', + port '$$||current_setting('port')||$$' + )$$; + END; +$d$; + +CREATE USER MAPPING FOR public SERVER fdtest + OPTIONS (server 'localhost'); -- fail, can't specify server here +CREATE USER MAPPING FOR public SERVER fdtest OPTIONS (user :'USER'); + +GRANT USAGE ON FOREIGN SERVER fdtest TO regress_dblink_user; +GRANT EXECUTE ON FUNCTION dblink_connect_u(text, text) TO regress_dblink_user; + +SET SESSION AUTHORIZATION regress_dblink_user; +-- should fail +SELECT dblink_connect('myconn', 'fdtest'); +-- should succeed +SELECT dblink_connect_u('myconn', 'fdtest'); +SELECT * FROM dblink('myconn','SELECT * FROM foo') AS t(a int, b text, c text[]); + +\c - - +REVOKE USAGE ON FOREIGN SERVER fdtest FROM regress_dblink_user; +REVOKE EXECUTE ON FUNCTION dblink_connect_u(text, text) FROM regress_dblink_user; +DROP USER regress_dblink_user; +DROP USER MAPPING FOR public SERVER fdtest; +DROP SERVER fdtest; + +-- test asynchronous notifications +SELECT dblink_connect(connection_parameters()); + +--should return listen +SELECT dblink_exec('LISTEN regression'); +--should return listen +SELECT dblink_exec('LISTEN foobar'); + +SELECT dblink_exec('NOTIFY regression'); +SELECT dblink_exec('NOTIFY foobar'); + +SELECT notify_name, be_pid = (select t.be_pid from dblink('select pg_backend_pid()') as t(be_pid int)) AS is_self_notify, extra from dblink_get_notify(); + +SELECT * from dblink_get_notify(); + +SELECT dblink_disconnect(); + +-- test dropped columns in dblink_build_sql_insert, dblink_build_sql_update +CREATE TEMP TABLE test_dropped +( + col1 INT NOT NULL DEFAULT 111, + id SERIAL PRIMARY KEY, + col2 INT NOT NULL DEFAULT 112, + col2b INT NOT NULL DEFAULT 113 +); + +INSERT INTO test_dropped VALUES(default); + +ALTER TABLE test_dropped + DROP COLUMN col1, + DROP COLUMN col2, + ADD COLUMN col3 VARCHAR(10) NOT NULL DEFAULT 'foo', + ADD COLUMN col4 INT NOT NULL DEFAULT 42; + +SELECT dblink_build_sql_insert('test_dropped', '1', 1, + ARRAY['1'::TEXT], ARRAY['2'::TEXT]); + +SELECT dblink_build_sql_update('test_dropped', '1', 1, + ARRAY['1'::TEXT], ARRAY['2'::TEXT]); + +SELECT dblink_build_sql_delete('test_dropped', '1', 1, + ARRAY['2'::TEXT]); + +-- test local mimicry of remote GUC values that affect datatype I/O +SET datestyle = ISO, MDY; +SET intervalstyle = postgres; +SET timezone = UTC; +SELECT dblink_connect('myconn',connection_parameters()); +SELECT dblink_exec('myconn', 'SET datestyle = GERMAN, DMY;'); + +-- single row synchronous case +SELECT * +FROM dblink('myconn', + 'SELECT * FROM (VALUES (''12.03.2013 00:00:00+00'')) t') + AS t(a timestamptz); + +-- multi-row synchronous case +SELECT * +FROM dblink('myconn', + 'SELECT * FROM + (VALUES (''12.03.2013 00:00:00+00''), + (''12.03.2013 00:00:00+00'')) t') + AS t(a timestamptz); + +-- single-row asynchronous case +SELECT * +FROM dblink_send_query('myconn', + 'SELECT * FROM + (VALUES (''12.03.2013 00:00:00+00'')) t'); +CREATE TEMPORARY TABLE result AS +(SELECT * from dblink_get_result('myconn') as t(t timestamptz)) +UNION ALL +(SELECT * from dblink_get_result('myconn') as t(t timestamptz)); +SELECT * FROM result; +DROP TABLE result; + +-- multi-row asynchronous case +SELECT * +FROM dblink_send_query('myconn', + 'SELECT * FROM + (VALUES (''12.03.2013 00:00:00+00''), + (''12.03.2013 00:00:00+00'')) t'); +CREATE TEMPORARY TABLE result AS +(SELECT * from dblink_get_result('myconn') as t(t timestamptz)) +UNION ALL +(SELECT * from dblink_get_result('myconn') as t(t timestamptz)) +UNION ALL +(SELECT * from dblink_get_result('myconn') as t(t timestamptz)); +SELECT * FROM result; +DROP TABLE result; + +-- Try an ambiguous interval +SELECT dblink_exec('myconn', 'SET intervalstyle = sql_standard;'); +SELECT * +FROM dblink('myconn', + 'SELECT * FROM (VALUES (''-1 2:03:04'')) i') + AS i(i interval); + +-- Try swapping to another format to ensure the GUCs are tracked +-- properly through a change. +CREATE TEMPORARY TABLE result (t timestamptz); + +SELECT dblink_exec('myconn', 'SET datestyle = ISO, MDY;'); +INSERT INTO result + SELECT * + FROM dblink('myconn', + 'SELECT * FROM (VALUES (''03.12.2013 00:00:00+00'')) t') + AS t(a timestamptz); + +SELECT dblink_exec('myconn', 'SET datestyle = GERMAN, DMY;'); +INSERT INTO result + SELECT * + FROM dblink('myconn', + 'SELECT * FROM (VALUES (''12.03.2013 00:00:00+00'')) t') + AS t(a timestamptz); + +SELECT * FROM result; + +DROP TABLE result; + +-- Check error throwing in dblink_fetch +SELECT dblink_open('myconn','error_cursor', + 'SELECT * FROM (VALUES (''1''), (''not an int'')) AS t(text);'); +SELECT * +FROM dblink_fetch('myconn','error_cursor', 1) AS t(i int); +SELECT * +FROM dblink_fetch('myconn','error_cursor', 1) AS t(i int); + +-- Make sure that the local settings have retained their values in spite +-- of shenanigans on the connection. +SHOW datestyle; +SHOW intervalstyle; + +-- Clean up GUC-setting tests +SELECT dblink_disconnect('myconn'); +RESET datestyle; +RESET intervalstyle; +RESET timezone; |