From 9ec73c4aa6028972f7dc981d471c7170df8a9d02 Mon Sep 17 00:00:00 2001
From: "Brian S. Stephan" <bss@incorporeal.org>
Date: Wed, 27 Apr 2011 21:38:52 -0500
Subject: [PATCH] Markov: this is kind of embarrassing. remove a duplicate
 index.

---
 modules/Markov.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/modules/Markov.py b/modules/Markov.py
index ab72bc4..6121474 100644
--- a/modules/Markov.py
+++ b/modules/Markov.py
@@ -124,6 +124,19 @@ class Markov(Module):
                 db.rollback()
                 print('sqlite error: ' + str(e))
                 raise
+        if (version < 4):
+            db = self.get_db()
+            try:
+                db.execute('''
+                    DROP INDEX markov_chain_key_index''')
+                db.execute('UPDATE drbotzo_modules SET version = ? WHERE module = ?',
+                    (4, self.__class__.__name__))
+                db.commit()
+                version = 4
+            except sqlite3.Error as e:
+                db.rollback()
+                print('sqlite error: ' + str(e))
+                raise
 
     def register_handlers(self):
         """Handle pubmsg/privmsg, to learn and/or reply to IRC events."""