4 dblink_exec — executes a command in a remote database
8 dblink_exec(text connname, text sql [, bool fail_on_error]) returns text
9 dblink_exec(text connstr, text sql [, bool fail_on_error]) returns text
10 dblink_exec(text sql [, bool fail_on_error]) returns text
14 dblink_exec executes a command (that is, any SQL statement that doesn't
15 return rows) in a remote database.
17 When two text arguments are given, the first one is first looked up as
18 a persistent connection's name; if found, the command is executed on
19 that connection. If not found, the first argument is treated as a
20 connection info string as for dblink_connect, and the indicated
21 connection is made just for the duration of this command.
26 Name of the connection to use; omit this parameter to use the
30 A connection info string, as previously described for
34 The SQL command that you wish to execute in the remote database,
35 for example insert into foo values(0, 'a', '{"a0","b0","c0"}').
38 If true (the default when omitted) then an error thrown on the
39 remote side of the connection causes an error to also be thrown
40 locally. If false, the remote error is locally reported as a
41 NOTICE, and the function's return value is set to ERROR.
45 Returns status, either the command's status string or ERROR.
49 SELECT dblink_connect('dbname=dblink_test_standby');
55 SELECT dblink_exec('insert into foo values(21, ''z'', ''{"a0","b0","c0"}'');');
61 SELECT dblink_connect('myconn', 'dbname=regression');
67 SELECT dblink_exec('myconn', 'insert into foo values(21, ''z'', ''{"a0","b0","c0
74 SELECT dblink_exec('myconn', 'insert into pg_class values (''foo'')',false);
76 DETAIL: ERROR: null value in column "relnamespace" violates not-null constrain