- changed a few isinstance(value, Decimal) to "is not None", where appropriate

- fixed result processor for Numeric(asdecimal=False) on MSSQL.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/sqlalchemy/dialects/postgresql/pypostgresql.py b/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
index 2c33b3eb5..77ed44512 100644
--- a/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
+++ b/lib/sqlalchemy/dialects/postgresql/pypostgresql.py
@@ -22,7 +22,7 @@ class PGNumeric(sqltypes.Numeric):
             return None
         else:
             def process(value):
-                if isinstance(value, decimal.Decimal):
+                if value is not None:
                     return float(value)
                 else:
                     return value