anchor.diff:  // its a correct literal when the AST is being constructed. This
   // allows us to provide more meaningful error messages to the user
   BINARY_LITERAL
  -    :  'X\'' (~'\'')* '\''
  +    : 'X\'' (~'\'')* '\''
       ;
   
   INTEGER_VALUE
  
positive.code:     : querySpecification                   #queryPrimaryDefault
      | TABLE qualifiedName                  #table
      | VALUES expression (',' expression)*  #inlineTable
      | '(' queryNoWith  ')'                 #subquery
      ;
  
  sortItem
  
negative.code: SLASH: '/';
  PERCENT: '%';
  CONCAT: '||';
  QUESTION_MARK: '?';
  
  STRING
      : '\'' ( ~'\'' | '\'\'' )* '\''
  