-- Direct, customer-independent links between cases and internet connections.
CREATE TABLE IF NOT EXISTS sag_internet_connections (
    sag_id INTEGER NOT NULL REFERENCES sag_sager(id) ON DELETE CASCADE,
    connection_id INTEGER NOT NULL REFERENCES internet_connections_connections(id) ON DELETE RESTRICT,
    linked_by_user_id INTEGER REFERENCES users(user_id) ON DELETE SET NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    PRIMARY KEY (sag_id, connection_id)
);

CREATE INDEX IF NOT EXISTS idx_sag_internet_connections_connection
    ON sag_internet_connections(connection_id, created_at DESC);