gistfile1.txt

var pg = require('pg');

for(var i = 0; i < 10; i++) {
  var domain = require('domain').create();
  domain.id = i;
  domain.count = 0;

  domain.run(λ() {
    process.domain.count++;
    pg.connect(λ(err, client, done) {
      process.domain.count++;
      setTimeout(λ() {
        process.domain.count++;
        client.query('SELECT NOW()', λ() {
          process.domain.count++;
          done();
          console.log('%d - %d', process.domain.id, process.domain.count)
        })
      })
    })
  })
}

//output:
bmc@bmcnix:~$ node domain-example.js 
0 - 5
1 - 4
2 - 4
3 - 4
4 - 4
5 - 4
6 - 4
7 - 4
8 - 4
0 - 7