Simplified SQLite's Decimal adapter.

django/db/backends/sqlite3/base.py

@@ -40,7 +40,7 @@ Database.register_converter("datetime", decoder(parse_datetime))
 Database.register_converter("timestamp", decoder(parse_datetime))
 Database.register_converter("TIMESTAMP", decoder(parse_datetime))
 
-Database.register_adapter(decimal.Decimal, backend_utils.rev_typecast_decimal)
+Database.register_adapter(decimal.Decimal, str)
 
 
 class DatabaseWrapper(BaseDatabaseWrapper):

django/db/backends/utils.py

@@ -187,12 +187,6 @@ def typecast_timestamp(s):  # does NOT store time zone information
 # Converters from Python to database (string) #
 ###############################################
 
-def rev_typecast_decimal(d):
-    if d is None:
-        return None
-    return str(d)
-
-
 def split_identifier(identifier):
     """
     Split a SQL identifier into a two element tuple of (namespace, name).