Merge from 5.1.

1 files changed, 17 insertions, 1 deletions

diff --git a/sql/item.cc b/sql/item.cc
index 71b7a68c258..132746fa1cd 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -769,15 +769,31 @@ void Item::set_name(const char *str, uint length, CHARSET_INFO *cs)
   if (!my_charset_same(cs, system_charset_info))
   {
     size_t res_length;
-    name= sql_strmake_with_convert(str, name_length= length, cs,
+    name= sql_strmake_with_convert(str, length, cs,
 				   MAX_ALIAS_NAME, system_charset_info,
 				   &res_length);
+    name_length= res_length;
   }
   else
     name= sql_strmake(str, (name_length= min(length,MAX_ALIAS_NAME)));
 }
 
 
+void Item::set_name_no_truncate(const char *str, uint length, CHARSET_INFO *cs)
+{
+  if (!my_charset_same(cs, system_charset_info))
+  {
+    size_t res_length;
+    name= sql_strmake_with_convert(str, length, cs,
+				   UINT_MAX, system_charset_info,
+				   &res_length);
+    name_length= res_length;
+  }
+  else
+    name= sql_strmake(str, (name_length= length));
+}
+
+
 /**
   @details
   This function is called when: