mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-29 05:37:20 +02:00
63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
==================================================================
|
|
Name
|
|
|
|
dblink_exec -- Executes an UPDATE/INSERT/DELETE on a remote database
|
|
|
|
Synopsis
|
|
|
|
dblink_exec(text connstr, text sql)
|
|
dblink_exec(text connname, text sql)
|
|
dblink_exec(text sql)
|
|
|
|
Inputs
|
|
|
|
connname
|
|
connstr
|
|
If two arguments are present, the first is first assumed to be a specific
|
|
connection name to use. If the name is not found, the argument is then
|
|
assumed to be a valid connection string, of standard libpq format,
|
|
e.g.: "hostaddr=127.0.0.1 dbname=mydb user=postgres password=mypasswd"
|
|
|
|
If only one argument is used, then the unnamed connection is used.
|
|
|
|
sql
|
|
|
|
sql statement that you wish to execute on the remote host, e.g.:
|
|
insert into foo values(0,'a','{"a0","b0","c0"}');
|
|
|
|
Outputs
|
|
|
|
Returns status of the command
|
|
|
|
Notes
|
|
1) dblink_open starts an explicit transaction. If, after using dblink_open,
|
|
you use dblink_exec to change data, and then an error occurs or you use
|
|
dblink_disconnect without a dblink_close first, your change *will* be
|
|
lost.
|
|
|
|
Example usage
|
|
|
|
select dblink_connect('dbname=dblink_test_slave');
|
|
dblink_connect
|
|
----------------
|
|
OK
|
|
(1 row)
|
|
|
|
select dblink_exec('insert into foo values(21,''z'',''{"a0","b0","c0"}'');');
|
|
dblink_exec
|
|
-----------------
|
|
INSERT 943366 1
|
|
(1 row)
|
|
|
|
select dblink_connect('myconn','dbname=regression');
|
|
dblink_connect
|
|
----------------
|
|
OK
|
|
(1 row)
|
|
|
|
select dblink_exec('myconn','insert into foo values(21,''z'',''{"a0","b0","c0"}'');');
|
|
dblink_exec
|
|
------------------
|
|
INSERT 6432584 1
|
|
(1 row)
|