anchor.diff:      : (IF NOT EXISTS)?
       ;
   
  -createDefinitions
  +createDefinitionClause_
       : LP_ (createDefinition (COMMA_ createDefinition)*)? RP_
       ;
   
  
positive.code:     ;
  
  inheritClause
      : INHERITS tableNames
      ;
  
  alterIndexName
  
negative.code: import Symbol, Keyword, Literals, BaseRule;
  
  createTable
      : CREATE temporaryClause_ TABLE existClause_ tableName createDefinitionClause_ inheritClause
      ;
  
  createIndex
  