From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sun, 12 Feb 2012 22:41:27 +0000 (-0500)
Subject: - [bug] drop_index() ensures a dummy column
X-Git-Tag: rel_0_2_2~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a6e05c91846119398cacb3240a00f135bdc4866;p=thirdparty%2Fsqlalchemy%2Falembic.git

- [bug] drop_index() ensures a dummy column
  is added when it calls "Index", as SQLAlchemy
  0.7.6 will warn on index with no column names.
---

diff --git a/CHANGES b/CHANGES
index 5fbd3bcc..7c27ecf7 100644
--- a/CHANGES
+++ b/CHANGES
@@ -20,6 +20,10 @@
   get the Engine from now.  courtesy 
   Marcin Kuzminski [#30]
 
+- [bug] drop_index() ensures a dummy column
+  is added when it calls "Index", as SQLAlchemy
+  0.7.6 will warn on index with no column names.
+
 0.2.1
 =====
 - [bug] Fixed the generation of CHECK constraint,
diff --git a/alembic/operations.py b/alembic/operations.py
index 22f260c6..53b65dca 100644
--- a/alembic/operations.py
+++ b/alembic/operations.py
@@ -522,7 +522,9 @@ class Operations(object):
             drop_index("accounts")
 
         """
-        self.impl.drop_index(self._index(name, 'foo', []))
+        # need a dummy column name here since SQLAlchemy
+        # 0.7.6 and further raises on Index with no columns
+        self.impl.drop_index(self._index(name, 'foo', ['x']))
 
     def drop_constraint(self, name, tablename):
         """Drop a constraint of the given name"""