CREATE TABLE drive_file_sources (
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    file_path TEXT NOT NULL,
    source TEXT NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    PRIMARY KEY (user_id, file_path),
    CONSTRAINT drive_file_sources_source_chk CHECK (source IN ('ultimail', 'ultimeet'))
);

CREATE INDEX idx_drive_file_sources_user_source
    ON drive_file_sources (user_id, source);