commit 002e4c6126878f6bf41158b37ad86f68bb4704f1
Author: Aegir sandbox <aegir@ceres.koumbit.net>
Date:   Fri Feb 19 17:14:10 2010 -0500

    #719730 - fix queue and sequence tables upgrades from D5

diff --git includes/update.inc includes/update.inc
index 70861a6..c2d4f76 100644
--- includes/update.inc
+++ includes/update.inc
@@ -527,6 +527,13 @@ function update_fix_d7_requirements() {
         'expire' => array('expire'),
       ),
     );
+    // Check for queue table that may remain from a D5 insatll, if found rename
+    // it, it has a different schema than D7 but could be useful for upgrading
+    // modules.
+    if (db_table_exists('queue')) {
+      db_rename_table('queue', 'queue_old');
+    }
+
     db_create_table('queue', $schema['queue']);
 
     // Create the sequences table.
@@ -542,6 +549,12 @@ function update_fix_d7_requirements() {
        ),
       'primary key' => array('value'),
     );
+    // Check for sequences table that may remain from a Drupal 5 install, if
+    // found rename it, it has a different schema than D7 but could be useful
+    // for upgrading modules.
+    if (db_table_exists('sequences')) {
+      db_rename_table('sequences', 'sequences_old');
+    }
     db_create_table('sequences', $schema['sequences']);
     // Initialize the table with the maximum current increment of the tables
     // that will rely on it for their ids.