factored down exportable_columns/flatten_cols/proxy_column/oid_etc_yada down to a single, streamlined "_populate_column_collection" method called for all selectables

1 files changed, 0 insertions, 5 deletions

diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index a4028c1ef..8a44a7182 100644
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -276,11 +276,6 @@ class Table(SchemaItem, expression.TableClause):
         return _get_table_key(self.name, self.schema)
     key = property(key)
 
-    def _export_columns(self, columns=None):
-        # override FromClause's collection initialization logic; Table
-        # implements it differently
-        pass
-
     def _set_primary_key(self, pk):
         if getattr(self, '_primary_key', None) in self.constraints:
             self.constraints.remove(self._primary_key)