Fixed #16808, removed some dead code from teh ORM. Thanks to aaugustin for the patch.

    return datetime.datetime(int(dates[0]), int(dates[1]), int(dates[2]),

        int(times[0]), int(times[1]), int(seconds), int((microseconds + '000000')[:6]))

def typecast_boolean(s):

    if s is None: return None

    if not s: return False

    return str(s)[0].lower() == 't'

def typecast_decimal(s):

    if s is None or s == '':

        return None

# Converters from Python to database (string) #

###############################################

def rev_typecast_boolean(obj, d):

    return obj and '1' or '0'

def rev_typecast_decimal(d):

    if d is None:

        return None

# Unit tests for typecast functions in django.db.backends.util

import datetime

from django.db.backends import util as typecasts

import datetime, unittest

from django.utils import unittest

TEST_CASES = {

    'typecast_date': (

        ('2010-10-12 15:29:22.0632021', datetime.datetime(2010, 10, 12, 15, 29, 22, 63202)),

        ('2010-10-12 15:29:22.0632029', datetime.datetime(2010, 10, 12, 15, 29, 22, 63202)),

    ),

    'typecast_boolean': (

        (None, None),

        ('', False),

        ('t', True),

        ('f', False),

        ('x', False),

    ),

}

class DBTypeCasts(unittest.TestCase):