merge

1 files changed, 19 insertions, 2 deletions

diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc
index 0446e8bf18c..ad1e291a9d7 100644
--- a/sql/sql_prepare.cc
+++ b/sql/sql_prepare.cc
@@ -1,5 +1,5 @@
-/* Copyright (c) 2002, 2012, Oracle and/or its affiliates.
-   Copyright (c) 2008, 2011, Monty Program Ab
+/* Copyright (c) 2002, 2013, Oracle and/or its affiliates.
+   Copyright (c) 2008, 2013, Monty Program Ab
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -115,6 +115,7 @@ When one supplies long data for a placeholder:
 #endif
 #include "lock.h"                               // MYSQL_OPEN_FORCE_SHARED_MDL
 #include "sql_handler.h"
+#include "transaction.h"                        // trans_rollback_implicit
 
 /**
   A result class used to send cursor rows using the binary protocol.
@@ -3399,6 +3400,22 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
 
   close_thread_tables(thd);
   thd->mdl_context.rollback_to_savepoint(mdl_savepoint);
+
+  /*
+    Transaction rollback was requested since MDL deadlock was discovered
+    while trying to open tables. Rollback transaction in all storage
+    engines including binary log and release all locks.
+
+    Once dynamic SQL is allowed as substatements the below if-statement
+    has to be adjusted to not do rollback in substatement.
+  */
+  DBUG_ASSERT(! thd->in_sub_stmt);
+  if (thd->transaction_rollback_request)
+  {
+    trans_rollback_implicit(thd);
+    thd->mdl_context.release_transactional_locks();
+  }
+
   lex_end(lex);
   cleanup_stmt();
   thd->restore_backup_statement(this, &stmt_backup);