dex/db/migrations/0011_case_insensitive_emails.sql
2016-03-02 14:47:00 -08:00

22 lines
713 B
PL/PgSQL

-- +migrate Up
-- This migration is a fix for a bug that allowed duplicate emails if they used different cases (see #338).
-- When migrating, dex will not take the liberty of deleting rows for duplicate cases. Instead it will
-- raise an exception and call for an admin to remove duplicates manually.
CREATE OR REPLACE FUNCTION raise_exp() RETURNS VOID AS $$
BEGIN
RAISE EXCEPTION 'Found duplicate emails when using case insensitive comparision, cannot perform migration.';
END;
$$ LANGUAGE plpgsql;
SELECT LOWER(email),
COUNT(email),
CASE
WHEN COUNT(email) > 1 THEN raise_exp()
ELSE NULL
END
FROM authd_user
GROUP BY LOWER(email);
UPDATE authd_user SET email = LOWER(email);