1901ebad42
Apart from adding the delete-related columns, this migration replaces the existing unique constraint on the username with a unique index which has a WHERE clause, so that deleted usernames need not be unique. This is to avoid having to implement a special function for generating unique IDs just to keep the deleted username unique and under 30 chars. The deleted username can still use e.g. the initial part of the user_id but the uniqueness is not required.
5 lines
216 B
SQL
5 lines
216 B
SQL
ALTER TABLE users DROP COLUMN IF EXISTS is_deleted;
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ALTER TABLE users DROP COLUMN IF EXISTS deleted_on;
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DROP INDEX IF EXISTS users_username_idx;
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ALTER TABLE users ADD CONSTRAINT users_username_key UNIQUE (username); |