Removed references to sequence in MSSQL

Implicit identities in mssql work the same as implicit sequences on any
other dialects. Explicit sequences are enabled through the use of
"default=Sequence()". See the MSSQL dialect documentation for more
information.

2 files changed, 5 insertions, 2 deletions

diff --git a/lib/sqlalchemy/dialects/mssql/base.py b/lib/sqlalchemy/dialects/mssql/base.py
index 76846b6b4..ae9834a39 100644
--- a/lib/sqlalchemy/dialects/mssql/base.py
+++ b/lib/sqlalchemy/dialects/mssql/base.py
@@ -138,6 +138,9 @@ would yield::
 Note that the ``start`` and ``increment`` values for sequences are
 optional and will default to 1,1.
 
+Implicit ``autoincrement`` behavior works the same in MSSQL as it
+does in other dialects and results in an ``IDENTITY`` column.
+
 * Support for ``SET IDENTITY_INSERT ON`` mode (automagic on / off for
   ``INSERT`` s)
 
@@ -1082,7 +1085,7 @@ class MSDDLCompiler(compiler.DDLCompiler):
 
         # install a IDENTITY Sequence if we have an implicit IDENTITY column
         if seq_col is column:
-            sequence = getattr(column, 'sequence', None)
+            sequence = isinstance(column.default, sa_schema.Sequence) and column.default
             if sequence:
                 start, increment = sequence.start or 1, sequence.increment or 1
             else:
diff --git a/lib/sqlalchemy/engine/reflection.py b/lib/sqlalchemy/engine/reflection.py
index d88a0a3d2..0bd1e955d 100644
--- a/lib/sqlalchemy/engine/reflection.py
+++ b/lib/sqlalchemy/engine/reflection.py
@@ -300,7 +300,7 @@ class Inspector(object):
                 colargs.append(sa_schema.DefaultClause(sql.text(col_d['default'])))
                 
             if 'sequence' in col_d:
-                # TODO: whos using this ?
+                # TODO: mssql, maxdb and sybase are using this.
                 seq = col_d['sequence']
                 sequence = sa_schema.Sequence(seq['name'], 1, 1)
                 if 'start' in seq: