a small change in the migrations

2 files changed, 2 insertions, 2 deletions

diff --git a/askbot/migrations/__init__.py b/askbot/migrations/__init__.py
index b9683daf..89f7c5e2 100644
--- a/askbot/migrations/__init__.py
+++ b/askbot/migrations/__init__.py
@@ -2,7 +2,7 @@ from south.db import db
 from south.utils import ask_for_it_by_name
 from south.v2 import SchemaMigration
 
-if not db.has_ddl_transactions:
+if db.backend_name == 'mysql' and not db.has_ddl_transactions:
     SchemaMigration.no_dry_run = True
 
 # Terminal ANSI codes for printing colored text:
diff --git a/askbot/migrations_api/__init__.py b/askbot/migrations_api/__init__.py
index 5a65f9cf..a9b20a69 100644
--- a/askbot/migrations_api/__init__.py
+++ b/askbot/migrations_api/__init__.py
@@ -13,7 +13,7 @@ def safe_add_column(table, column, column_data, keep_default = False):
     so, we need to add these columns here in separate transactions
     and roll back if they fail, if we want we could also record - which columns clash
     """
-    if db.backend_name in ('mysql', 'postgres'):
+    if db.backend_name == 'mysql':
         if len(db.execute('select column_name from information_schema.columns where table_name=%s and column_name=%s', params=[table, column])) == 0:
             db.add_column(table, column, column_data, keep_default = keep_default)
     else: