ctype_utf8.result:

  adding test case
sql_table.cc:
  sql_table.cc:
  - do not create a new item when charsets are the same
  - return ER_INVALID_DEFAULT if default value cannot
    be converted into the column character set.
item.cc:
  - Allow conversion not only to Unicode,
    but also to and from "binary".
  - Adding safe_charset_converter() for Item_num
    and Item_varbinary, returning a fixed const Item.

1 files changed, 8 insertions, 3 deletions

diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index b68b20c32a3..e27cd7196ed 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -557,10 +557,15 @@ int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
         Convert the default value from client character
         set into the column character set if necessary.
       */
-      if (sql_field->def)
+      if (sql_field->def && cs != sql_field->def->collation.collation)
       {
-        sql_field->def= 
-          sql_field->def->safe_charset_converter(cs);
+        if (!(sql_field->def= 
+              sql_field->def->safe_charset_converter(cs)))
+        {
+          /* Could not convert */
+          my_error(ER_INVALID_DEFAULT, MYF(0), sql_field->field_name);
+          DBUG_RETURN(-1);
+        }
       }
 
       if (sql_field->sql_type == FIELD_TYPE_SET)