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Fix auth_query example to avoid 'bouncer config error' when no user is found #15

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Fix auth_query example to avoid 'bouncer config error' when no user is found #15

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11 changes: 5 additions & 6 deletions config.md
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Expand Up @@ -1626,14 +1626,13 @@ Database examples:

Example of a secure function for `auth_query`:

CREATE OR REPLACE FUNCTION pgbouncer.user_lookup(in i_username text, out uname text, out phash text)
RETURNS record AS $$
CREATE OR REPLACE FUNCTION pgbouncer.user_lookup(i_username text)
RETURNS TABLE (uname text, phash text) AS $$
BEGIN
SELECT rolname, CASE WHEN rolvaliduntil < now() THEN NULL ELSE rolpassword END
RETURN QUERY
SELECT rolname::text, CASE WHEN rolvaliduntil < now() THEN NULL ELSE rolpassword END
FROM pg_authid
WHERE rolname=i_username AND rolcanlogin
INTO uname, phash;
RETURN;
WHERE rolname=i_username AND rolcanlogin;
END;
$$ LANGUAGE plpgsql
SECURITY DEFINER
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