From 1db528b7c474ca59df91609bcd6e2b3e7d0d2c9d Mon Sep 17 00:00:00 2001
From: Fabio Erculiani <fabio@mars.(none)>
Date: Sat, 11 Apr 2009 17:05:01 +0200
Subject: [PATCH] entropy.db: improve speed of doesColumnInTableExist

---
 libraries/entropy/db.py | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/libraries/entropy/db.py b/libraries/entropy/db.py
index 8c36b8fb4..7a44635fe 100644
--- a/libraries/entropy/db.py
+++ b/libraries/entropy/db.py
@@ -3859,16 +3859,11 @@ class LocalRepository:
         return True
 
     def doesColumnInTableExist(self, table, column):
-        self.cursor.execute('PRAGMA table_info( '+table+' )')
-        rslt = self.cursor.fetchall()
-        if not rslt:
-            return False
-        found = False
-        for row in rslt:
-            if row[1] == column:
-                found = True
-                break
-        return found
+        self.cursor.execute('PRAGMA table_info( %s )' % (table,))
+        rslt = (x[1] for x in self.cursor.fetchall())
+        if column in rslt:
+            return True
+        return False
 
     def database_checksum(self, do_order = False, strict = True, strings = False):