var async = require('async');
var asyncCalls = [];

function inboxUsers(){
    for (var i=0; i<uniqueArray.length; i++){
        var getUsername = 'SELECT userName FROM users WHERE userId = ' + uniqueArray[i];
        asyncCalls.push(function (done) {
          db.query(getUsername, done);
        });
    }
    async.parallel(asyncCalls, function (err, queryResults) {
      if (err) { return console.error(err); }
      queryResults.forEach(function (results) {
        results.forEach(function (user) {
          console.log('single',user.userName);
          inboxUserList.push(user.userName);
        });
      });
      sample();
    });
}

function sample(){
    console.log('same function');
}