text: SET @s := 'the quick brown fox';
  SET @result := _retokenized_text(@s, ' ', '', FALSE, 'allow');
  
  SELECT @result = 
      CONCAT_WS(@common_schema_retokenized_delimiter, 'the', 'quick', 'brown', 'fox')
      AND @common_schema_retokenized_count = 4
  ;
  