No function matches Levenshtein stored procedure

Bug report

Describe the bug

Working with Supabase and on a Nuxt.js project, so far things are going very well, very enjoyable and getting a new found love for SQL again.

I’ve started getting to some interesting points of Supabase with stored procedures to perform fuzzysearches.

I have a resemblance of a search query that joins a table creates a concatenated string to compare to a given string to calculate the LEVENSHTEIN distance for search results that return something useful for user.

This procedure works well in the SQL explorer. (seen below)

I can’t seem to get my Supabase.js to perform the query, instead, it returns the below error message.

I have included as much information to help debug this.

stored procedure

CREATE OR REPLACE FUNCTION public.search_tracks(query text)
RETURNS TABLE(id text, artist text, title text, full_name text, distance int) AS $$
  SELECT tracks.id, artists.title AS artist, tracks.title, concat(artists.title, ' - ', tracks.title) AS full_name, LEVENSHTEIN(LOWER(CONCAT(artists.title, ' - ', tracks.title)), LOWER(query)) AS distance 
    FROM tracks 
  LEFT JOIN artists ON artists.id = tracks.artist
  ORDER BY distance ASC
  LIMIT 20;
$$ LANGUAGE SQL immutable;

{
  error: {
    hint: 'No function matches the given name and argument types. You might need to add explicit type casts.',
    details: null,
    code: '42883',
    message: 'function levenshtein(text, text) does not exist'
  },
  data: null,
  count: null,
  status: 404,
  statusText: 'Not Found',
  body: null
}

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

const resp = await $supabase
  .rpc('search_tracks', { query: 'test' })
  .select('*')

Expected behaviour

A clear and concise description of what you expected to happen.

Screenshots

If applicable, add screenshots to help explain your problem.

System information

• OS: macos
• Browser (if applies) chrome
• Version of supabase-js:
  • @supabase/postgrest-js@^0.26.1
  • @supabase/supabase-js@^1.3.4
• Version of Node.js: v14.16.0

Additional context

CREATE EXTENSION IF NOT EXISTS fuzzystrmatch WITH SCHEMA extensions;
CREATE TABLE public.artists (
    id character varying NOT NULL,
    title character varying NOT NULL,
);
CREATE TABLE public.tracks (
    id character varying NOT NULL,
    title character varying NOT NULL,
    artist character varying NOT NULL,
);
INSERT INTO artists (id, title) VALUES ('art_1', 'Daft Punk');
INSERT INTO tracks (id, title, artist) VALUES ('trk_1', 'Harder Faster Stronger', 'art_1');

Run the procedure

SELECT search_tracks('Daft Punk - hard fast strong');

[steve-chavez]

Depending on the role you use to make the call, you might also need to add a grant usage:

grant usage on schema extensions to anon;
grant usage on schema extensions to authenticated;

[soedirgo]

Am able to resolve the permission error with grants, so closing the issue.

create or replace function public.test_function() returns int as $$
  select extensions.levenshtein('a', 'b');
$$ language sql;
grant execute on function extensions.levenshtein(text, text) to anon, authenticated, service_role;