mirror of
https://github.com/postgres/postgres.git
synced 2025-11-03 09:13:20 +03:00
50 lines
1.1 KiB
Plaintext
50 lines
1.1 KiB
Plaintext
==================================================================
|
|
Name
|
|
|
|
dblink_exec -- Executes an UPDATE/INSERT/DELETE on a remote database
|
|
|
|
Synopsis
|
|
|
|
dblink_exec(text connstr, text sql)
|
|
- or -
|
|
dblink_exec(text sql)
|
|
|
|
Inputs
|
|
|
|
connstr
|
|
|
|
standard libpq format connection string,
|
|
e.g. "hostaddr=127.0.0.1 port=5432 dbname=mydb user=postgres password=mypasswd"
|
|
If the second form is used, then the dblink_connect(text connstr) must be
|
|
executed first.
|
|
|
|
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
|
|
|
|
test=# select dblink_connect('dbname=dblink_test_slave');
|
|
dblink_connect
|
|
----------------
|
|
OK
|
|
(1 row)
|
|
|
|
test=# select dblink_exec('insert into foo values(21,''z'',''{"a0","b0","c0"}'');');
|
|
dblink_exec
|
|
-----------------
|
|
INSERT 943366 1
|
|
(1 row)
|