Missing row on execution

When I run the following query:
``` go
var query = rel.
Select("c.id", "c.created_time", "c.updated_time", "c.archived", "c.name", "c.description", "^MAX(n.updated_time) last_note_dated", "^AVG(n.score) avg_score").
From("contacts as c").
JoinWith("LEFT JOIN", "notes as n", "n.object_id", "c.id", where.Eq("n.archived", false)).
Where(where.Eq("c.archived", false)).
Group("c.id", "c.created_time", "c.updated_time", "c.archived", "c.name", "c.description")
```

The query must return two records, but instead it returns only one.
The missing records is the one which has no notes associated. If I copy the query from the instrumentation log and run it manually against the db, it returns two records.

However if I modify the query to (see `as`):
``` go
var query = rel.
Select("c.id", "c.created_time", "c.updated_time", "c.archived", "c.name", "c.description", "^MAX(n.updated_time) as last_note_dated", "^AVG(n.score) as avg_score").
From("contacts as c").
JoinWith("LEFT JOIN", "notes as n", "n.object_id", "c.id", where.Eq("n.archived", false)).
Where(where.Eq("c.archived", false)).
Group("c.id", "c.created_time", "c.updated_time", "c.archived", "c.name", "c.description")
```

I have got the following error (similar to #370):
```
sql: Scan error on column index 6, name \"last_note_dated\": unsupported Scan, storing driver.Value type string into type *time.Time", err:(*errors.errorString)(0xc0003f7940)
```

Looks like something bad is going on when queries got executed. I am probably thinking to quit `go-rel` as it constantly prevents me from progressing my project.

Start by reproducing the reported query and comparing its execution with the SQL shown in the instrumentation log. Inspect query execution and result scanning, using the related behavior in #370 as context. Done means the query returns both contacts, including the one without notes, and the aggregate fields scan without errors.

Written by the indexing model from the issue text.