Fix for #3266 (garbled TEXT fields as a result of CREATE TABLE SELECT)

Problem is that Item::save_in_field modifies str_value member
 before it calls val_str but Item_copy_string::val_str just returns
this str_value as the result.
I added local String variable to the Item::save_in_field

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/item.cc b/sql/item.cc
index 7549bac71b8..59f3bc7077e 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -1282,8 +1282,8 @@ int Item::save_in_field(Field *field, bool no_conversions)
     String *result;
     CHARSET_INFO *cs= collation.collation;
     char buff[MAX_FIELD_WIDTH];		// Alloc buffer for small columns
-    str_value.set_quick(buff,sizeof(buff),cs);
-    result=val_str(&str_value);
+    String loc_value(buff, sizeof(buff), cs);
+    result=val_str(&loc_value);
     if (null_value)
       return set_field_to_null_with_conversions(field, no_conversions);
     field->set_notnull();