The easy way would be to store in raw string (CHAR(36)). If we have a bigger eye for performance, we could store it in byte level with hex. This means we want to understand how many sections are there in the UUID (could be company specific), and break them down.

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-- +goose Up

-- +goose StatementBegin
CREATE FUNCTION bin_from_uuid(uuid CHAR(36))
RETURNS BINARY(16) DETERMINISTIC
BEGIN
  RETURN UNHEX(CONCAT(MID(uuid, 25, 12), MID(uuid, 20, 4), MID(uuid, 15, 4), MID(uuid, 10, 4), MID(uuid, 1, 8)));
END
-- +goose StatementEnd

-- +goose StatementBegin
CREATE FUNCTION uuid_from_bin(b BINARY(16))
RETURNS CHAR(36) DETERMINISTIC
BEGIN
  DECLARE hex CHAR(32);
  SET hex = HEX(b);
  RETURN LOWER(CONCAT(MID(hex, 25, 8), '-', MID(hex, 21,4), '-', MID(hex, 17,4), '-', MID(hex, 13,4), '-', MID(hex, 1, 12)));
END
-- +goose StatementEnd