The generated name of the server column of token_entity is server_uuid, not server. The unique constraint on the table should reflect this.

I ran into this problem when trying to create the necessary database tables for Autodone on a fresh PostgreSQL database. Hibernate tries to create the token_entity table using the following SQL:

CREATE TABLE token_entity (
    server_uuid UUID NOT NULL,
    uuid UUID NOT NULL,
    token varchar(255) NOT NULL,
    username varchar(255) NOT NULL,
    PRIMARY KEY (UUID),
    UNIQUE (server, username)
);

This obviously fails because the unique constraint refers to a column named server which doesn’t exist.