MSSQL Dialect should set sequence columns to be non null

diff --git a/lib/sqlalchemy/dialects/mssql/base.py b/lib/sqlalchemy/dialects/mssql/base.py
index 0f862f10bb4b802606e9466baf68a2ee3b921a6f..127e5da797ab2f10648c44c07c281c82ba45988a 100644 (file)
--- a/lib/sqlalchemy/dialects/mssql/base.py
+++ b/lib/sqlalchemy/dialects/mssql/base.py
@@ -1018,7 +1018,8 @@ class MSDDLCompiler(compiler.DDLCompiler):
                    + self.dialect.type_compiler.process(column.type))
 
         if column.nullable is not None:
-            if not column.nullable or column.primary_key:
+            if not column.nullable or column.primary_key or \
+                    isinstance(column.default, sa_schema.Sequence):
                 colspec += " NOT NULL"
             else:
                 colspec += " NULL"