cursor.toArray() hanging on complex query

[chrisvariety]

Sorry for the barrage today.

This query works in the data explorer, but hangs on yield cursor.toArray(); within rethinkdbdash.

r.db('ti_development').table('courses').getAll('cde178e3-4c82-4918-b022-9042c3ace84c', {index: 'company'}).map(function(course) {
  return r.object(
    'course', course,
    'sections', r.branch(course('sections').count().eq(0), [], r.db('ti_development').table('sections').getAll(r.args(course('sections'))).coerceTo('ARRAY'))
  ).merge(function(hash) {
    return r.object('lessons', hash('sections').concatMap(function(section) { return section('lessons'); }).do(function(lessons) {
      return r.branch(lessons.count().eq(0), [], r.db('ti_development').table('lessons').getAll(r.args(lessons)).coerceTo('ARRAY'));
    }));
  }).merge(function(hash) {
    return r.object('topics', hash('lessons').concatMap(function(lesson) { return lesson('topics')('id'); }).do(function(topics) {
      return r.branch(topics.count().eq(0), [], r.db('ti_development').table('topics').getAll(r.args(topics)).coerceTo('ARRAY'));
    }));
  });
});

Full query wrapped in co: https://gist.github.com/chrisvariety/68a13224fc15922217d9

Any thoughts? Specifically it's the last .merge() that causes the hang -- removing that makes rethinkdbdash hang-free. And specifically it's directly related to the data, as different ids do not hang with the exact same query.

Happy to email the data set to you (it is very tiny) so you can reproduce, just let me know your email...

Thanks!!

[neumino]

I just pushed a new package 1.13.1.

The empty response SUCCESS_COMPLETE was not properly handled. It should work fine now.
If it doesn't, let me know.

[chrisvariety]

Thanks so much! Working great now.