Thread: Escaping the $1 parameter in stored procedures

I'm running Postgres 7.3.2 in Redhat 9.0.

I'm trying to execute a function below defined as a stored procedure
  ALTER TABLE tms_schedule DROP CONSTRAINT "$1";

However, postgres thinks the "$1" is a parameter value.  How do I tell
postgres to treat it as a literal $1?

TIA,
Robert

Found a solution:

-- my_constraint(0) = turn off constraint
-- my_constraint(1) = turn ON constraint
CREATE OR REPLACE FUNCTION my_constraint(INTEGER)
RETURNS VARCHAR AS 'DECLARE    cmd VARCHAR;BEGIN        IF $1 = 0    THEN        RAISE NOTICE ''Turning OFF
constraints'';       cmd := ''ALTER TABLE $tName DROP CONSTRAINT "$1"'';        EXECUTE cmd;        cmd := ''ALTER
TABLE$tName DROP CONSTRAINT "$2"'';        EXECUTE cmd;    ELSE        RAISE NOTICE ''Turning ON constraints'';
ALTERTABLE $tName            ADD FOREIGN KEY(key1) REFERENCES table1;        ALTER TABLE $tName            ADD FOREIGN
KEY(key2)REFERENCES table2;    END IF;    RETURN ''OK'';END;'LANGUAGE plpgsql;"
 




limr@yahoo.com (robert) wrote in message news:<75f517f5.0310131218.3a2907e5@posting.google.com>...
> I'm running Postgres 7.3.2 in Redhat 9.0.
> 
> I'm trying to execute a function below defined as a stored procedure
> 
>    ALTER TABLE tms_schedule DROP CONSTRAINT "$1";
> 
> However, postgres thinks the "$1" is a parameter value.  How do I tell
> postgres to treat it as a literal $1?
> 
> TIA,
> Robert