CREATE TABLE IF NOT EXISTS room_attachment (
    id UUID PRIMARY KEY,
    room UUID NOT NULL,
    message UUID NOT NULL,
    uploader UUID NOT NULL,
    file_name VARCHAR(255) NOT NULL,
    file_size BIGINT NOT NULL,
    content_type VARCHAR(100) NOT NULL,
    s3_key VARCHAR(500) NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_room_attachment_room ON room_attachment (room);
CREATE INDEX idx_room_attachment_message ON room_attachment (message);
CREATE INDEX idx_room_attachment_uploader ON room_attachment (uploader);