DROP RULE
Name
DROP RULE -- remove a rewrite rule
Synopsis
DROP RULE [ IF EXISTS ] name ON table [ CASCADE | RESTRICT ]
Description
   DROP RULE drops a rewrite rule.
  
Parameters
- IF EXISTS
-       Do not throw an error if the rule does not exist. A notice is issued
      in this case.
      
- name
-       The name of the rule to drop.
      
- table
-       The name (optionally schema-qualified) of the table or view that
      the rule applies to.
      
- CASCADE
-       Automatically drop objects that depend on the rule.
      
- RESTRICT
-       Refuse to drop the rule if any objects depend on it.  This is
      the default.
      
Examples
   To drop the rewrite rule newrule:
DROP RULE newrule ON mytable;
Compatibility
   There is no DROP RULE statement in the SQL standard.