action

action 
      ::= 
      "select" 
      | "delete" 
      | "insert" [ "(" privilege_column_list ")" ] 
      | "update" [ "(" privilege_column_list ")" ] 
      | "references" [ "(" privilege_column_list ")" ] 
      | "usage" 

[rule list]
This rule is called by

-> action_list