levenshtein.sql

-- Only 1 operation necessary to convert
select
    levenshtein('cat', 'bat'); --1
    
-- Similar and not-so-similar names
select
    levenshtein('christina', 'kristina'), --2
    levenshtein('josephus', 'kristina'); --8
    
-- Similar and not-so-similar pronunciations
select
    levenshtein(metaphone('christina', 100), metaphone('kristina', 100)), --0
    levenshtein(metaphone('josephus', 100), metaphone('kristina', 100)); --4