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Please apply attached patch to contrib/dblink. It adds named persistent
connections to dblink. Shridhar Daithanka
This commit is contained in:
@ -6,17 +6,19 @@ dblink -- Returns a set from a remote database
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Synopsis
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dblink(text connstr, text sql)
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- or -
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dblink(text connname, text sql)
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dblink(text sql)
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Inputs
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connname
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connstr
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If two arguments are present, the first is first assumed to be a specific
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connection name to use. If the name is not found, the argument is then
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assumed to be a valid connection string, of standard libpq format,
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e.g.: "hostaddr=127.0.0.1 dbname=mydb user=postgres password=mypasswd"
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standard libpq format connection string,
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e.g. "hostaddr=127.0.0.1 port=5432 dbname=mydb user=postgres password=mypasswd"
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If the second form is used, then the dblink_connect(text connstr) must be
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executed first.
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If only one argument is used, then the unnamed connection is used.
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sql
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@ -29,7 +31,7 @@ Outputs
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Example usage
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test=# select * from dblink('dbname=template1','select proname, prosrc from pg_proc')
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select * from dblink('dbname=template1','select proname, prosrc from pg_proc')
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as t1(proname name, prosrc text) where proname like 'bytea%';
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proname | prosrc
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------------+------------
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@ -47,13 +49,13 @@ test=# select * from dblink('dbname=template1','select proname, prosrc from pg_p
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byteaout | byteaout
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(12 rows)
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test=# select dblink_connect('dbname=template1');
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select dblink_connect('dbname=template1');
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dblink_connect
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----------------
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OK
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(1 row)
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test=# select * from dblink('select proname, prosrc from pg_proc')
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select * from dblink('select proname, prosrc from pg_proc')
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as t1(proname name, prosrc text) where proname like 'bytea%';
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proname | prosrc
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------------+------------
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@ -71,6 +73,33 @@ test=# select * from dblink('select proname, prosrc from pg_proc')
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byteaout | byteaout
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(12 rows)
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select dblink_connect('myconn','dbname=regression');
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dblink_connect
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----------------
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OK
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(1 row)
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select * from dblink('myconn','select proname, prosrc from pg_proc')
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as t1(proname name, prosrc text) where proname like 'bytea%';
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proname | prosrc
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------------+------------
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bytearecv | bytearecv
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byteasend | byteasend
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byteale | byteale
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byteagt | byteagt
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byteage | byteage
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byteane | byteane
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byteacmp | byteacmp
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bytealike | bytealike
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byteanlike | byteanlike
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byteacat | byteacat
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byteaeq | byteaeq
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bytealt | bytealt
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byteain | byteain
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byteaout | byteaout
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(14 rows)
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==================================================================
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A more convenient way to use dblink may be to create a view:
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