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Datasette plugin that adds custom SQL functions for fuzzy string matching, built on top of the Jellyfish Python library by James Turk and Michael Stephens.

Interactive demos:


SELECT soundex("hello");
    -- Outputs H400
SELECT metaphone("hello");
    -- Outputs HL
SELECT nysiis("hello");
    -- Outputs HAL
SELECT match_rating_codex("hello");
    -- Outputs HLL
SELECT porter_stem("running");
    -- Outputs run
SELECT levenshtein_distance("hello", "hello world");
    -- Outputs 6
SELECT damerau_levenshtein_distance("hello", "hello world");
    -- Outputs 6
SELECT hamming_distance("hello", "hello world");
    -- Outputs 6
SELECT jaro_similarity("hello", "hello world");
    -- Outputs 0.8181818181818182
SELECT jaro_winkler_similarity("hello", "hello world");
    -- Outputs 0.890909090909091
SELECT match_rating_comparison("hello", "helloo");
    -- Outputs 1

See the Jellyfish documentation for an explanation of each of these functions.