{
const db = await dbClient4.db();
const conn = await db.connect();
const start = performance.now();
const result = await conn.send(`SELECT * FROM generate_series(1, 1000000)`);
const firstBatch = (await result.next()).value;
await conn.close();
const duration = performance.now() - start;
return { size: firstBatch.numRows, time: duration };
}