Merge bk-internal.mysql.com:/data0/bk/mysql-5.1

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-opt


client/mysqldump.c:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/field_conv.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/my_decimal.h:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.cc:
  Auto merged
sql/table.h:
  Auto merged
strings/decimal.c:
  Auto merged
sql/sql_update.cc:
  Manual merge

1 files changed, 6 insertions, 1 deletions

diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index 6842febea4d..b8117f53d6b 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -819,7 +819,12 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
   {
     value= item->val_int();
     *is_null= item->null_value;
-    if (item->field_type() == MYSQL_TYPE_DATE)
+    /*
+      Item_date_add_interval may return MYSQL_TYPE_STRING as the result
+      field type. To detect that the DATE value has been returned we
+      compare it with 1000000L - any DATE value should be less than it.
+    */
+    if (item->field_type() == MYSQL_TYPE_DATE || value < 100000000L)
       value*= 1000000L;
   }
   else