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From 1d729298ee9464e03a4695f2df0e63b15d10874c Mon Sep 17 00:00:00 2001
From: Bart Visscher <bartv@thisnet.nl>
Date: Thu, 18 Jul 2013 20:19:32 +0200
Subject: [PATCH] When changing from a non-primary index to a primary index,
 the dropped index isnt named PRIMARY

---
 doctrine/dbal/lib/Doctrine/DBAL/Platforms/MySqlPlatform.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/doctrine/dbal/lib/Doctrine/DBAL/Platforms/MySqlPlatform.php b/doctrine/dbal/lib/Doctrine/DBAL/Platforms/MySqlPlatform.php
index 8050e1f..d77b974 100644
--- a/doctrine/dbal/lib/Doctrine/DBAL/Platforms/MySqlPlatform.php
+++ b/doctrine/dbal/lib/Doctrine/DBAL/Platforms/MySqlPlatform.php
@@ -512,6 +512,15 @@ protected function getPreAlterTableIndexForeignKeySQL(TableDiff $diff)
                 }
             }
         }
+        foreach ($diff->changedIndexes as $changedKey => $changedIndex) {
+            if ($changedIndex->isPrimary() && $changedKey != 'PRIMARY') {
+                $index = $diff->changedIndexes[$changedKey];
+                $index = new index($changedKey, $index->getColumns(), $index->isUnique(), false);
+                $diff->removedIndexes[$changedKey] = $index;
+                $diff->addedIndexes['PRIMARY'] = $diff->changedIndexes[$changedKey];
+                unset($diff->changedIndexes[$changedKey]);
+            }
+        }
 
         $sql = array_merge($sql, parent::getPreAlterTableIndexForeignKeySQL($diff));
 
-- 
1.8.5.1