For dates range 18-31/10/2012 it is 1856622 records.
For dates range 20-31/10/2012 it is 1549583 records.
For dates range 18-22/10/2012 it is 602053 records.
So it is around 150000 per day.
Oh, the same situation is with completely different database and different SQL script. Over som amount of loaded data I get that eror.