From 37ea359931b5a6a5414edaecea36e3e4d1ef75e7 Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Wed, 26 Oct 2011 12:19:12 +0900
Subject: [PATCH] add indices to upgrade check if missing

---
 anki/upgrade.py | 5 +++++
 anki/utils.py   | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/anki/upgrade.py b/anki/upgrade.py
index 9b87c37b9..137736e38 100644
--- a/anki/upgrade.py
+++ b/anki/upgrade.py
@@ -53,6 +53,11 @@ class Upgrader(object):
         # old version?
         if db.scalar("select version from decks") != 65:
             return
+        # ensure we have indices for checks below
+        db.executescript("""
+create index if not exists ix_cards_factId on cards (factId);
+create index if not exists ix_fields_factId on fieldModels (factId);
+analyze;""")
         # fields missing a field model?
         if db.list("""
     select id from fields where fieldModelId not in (
diff --git a/anki/utils.py b/anki/utils.py
index 976484185..e75c3a8f6 100644
--- a/anki/utils.py
+++ b/anki/utils.py
@@ -193,6 +193,10 @@ def maxID(db):
 def guid64():
     return random.randint(-sys.maxint-1, sys.maxint)
 
+def guid32():
+    max = 2**32
+    return random.randint(0, max-1)
+
 # Fields
 ##############################################################################