How can I connect to a postgres database?

import { PRIVATE_DATABASE_URL } from '$env/static/private';
import pg from "pg";
import { drizzle } from "drizzle-orm/node-postgres";
import * as schema from '$lib/schema/schema';
import * as relations from '$lib/schema/relations';

const connectionString = PRIVATE_DATABASE_URL;
const pool = new pg.Pool({
  connectionString: encodeURI(connectionString),
});
const db = drizzle(pool, {
  schema: { ...schema, ...relations},
});

export default db;

import { PRIVATE_DATABASE_URL } from '$env/static/private';
import pg from "pg";
import { drizzle } from "drizzle-orm/node-postgres";
import * as schema from '$lib/schema/schema';
import * as relations from '$lib/schema/relations';

const connectionString = PRIVATE_DATABASE_URL;
const pool = new pg.Pool({
  connectionString: encodeURI(connectionString),
});
const db = drizzle(pool, {
  schema: { ...schema, ...relations},
});

export default db;