CREATE OR REPLACE FUNCTION create_monthly_partition()
RETURNS void AS $$
DECLARE
    partition_name text;
    start_date date;
    end_date date;
BEGIN
    start_date := DATE_TRUNC('month', CURRENT_DATE + INTERVAL '1 month');
    end_date := start_date + INTERVAL '1 month';
    partition_name := 'measurements_' || TO_CHAR(start_date, 'YYYY_MM');

    EXECUTE format(
        'CREATE TABLE IF NOT EXISTS %I PARTITION OF measurements FOR VALUES FROM (%L) TO (%L)',
        partition_name, start_date, end_date
    );
END;
$$ LANGUAGE plpgsql;