DROP RULE
Name
DROP RULE -- remove a rewrite rule
Synopsis
DROP RULE [ IF EXISTS ] name ON table_name [ 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_name
       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
   DROP RULE is a
   PostgreSQL language extension, as is the
   entire query rewrite system.