SELECT 'E1-start';
 ?column? 
----------
 E1-start
(1 row)

SELECT levenshtein_less_equal(repeat('é',15), repeat('b',18), -628112211, 891279227, 2147483647, 1094795584);
 levenshtein_less_equal 
------------------------
             1094795585
(1 row)

SELECT levenshtein(repeat('é',15), repeat('b',18), 1,1,1);
 levenshtein 
-------------
          18
(1 row)

SELECT levenshtein_less_equal(repeat('é',15), repeat('b',18), -628112211, 891279227, 2147483647, 1094795584);
 levenshtein_less_equal 
------------------------
             1094795585
(1 row)

SELECT 'E1-end', 42;
 ?column? | ?column? 
----------+----------
 E1-end   |       42
(1 row)