From f122cca4df7e63744524ab9d5814e1bc26e1d3bd Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Sat, 31 Jan 2015 16:01:20 +0100
Subject: [PATCH] main.null --ps: Item_null doesn't need charset converter

in particular, not the one that destructively changes Item's charset
(meaning different metadata for PREPARE and EXECUTE)
---
 sql/item.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sql/item.cc b/sql/item.cc
index bff524880db..bee14ff484f 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -3132,7 +3132,6 @@ my_decimal *Item_null::val_decimal(my_decimal *decimal_value)
 
 Item *Item_null::safe_charset_converter(CHARSET_INFO *tocs)
 {
-  collation.set(tocs);
   return this;
 }