From 3bd9bd56b17eb349a0b62f040edd30903e94eb36 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 1 Apr 2010 15:46:14 +0530
Subject: [PATCH] ...

---
 src/calibre/library/database2.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index 2851dba1d4..4f00f582e6 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -956,7 +956,7 @@ class LibraryDatabase2(LibraryDatabase):
             im.convert('RGB').save(path, 'JPEG')
 
     def all_formats(self):
-        formats = self.conn.get('SELECT format from data')
+        formats = self.conn.get('SELECT DISTINCT format from data')
         if not formats:
             return set([])
         return set([f[0] for f in formats])