Merge with 4.0.12

Docs/internals.texi:
  Auto merged
include/my_global.h:
  Auto merged
include/mysql_com.h:
  Auto merged
innobase/row/row0mysql.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
libmysql/Makefile.am:
  Auto merged
libmysqld/Makefile.am:
  Auto merged
libmysqld/lib_vio.c:
  Auto merged
mysql-test/r/heap.result:
  Auto merged
mysql-test/r/innodb.result:
  Auto merged
mysql-test/t/heap.test:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
BitKeeper/deleted/.del-password.c~76f30876e68eddb4:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/key.cc:
  Auto merged
sql/lex.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/slave.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.cc:
  Auto merged
strings/strto.c:
  Auto merged

1 files changed, 8 insertions, 0 deletions

diff --git a/sql/key.cc b/sql/key.cc
index feda9e156b3..37ef6339f20 100644
--- a/sql/key.cc
+++ b/sql/key.cc
@@ -271,5 +271,13 @@ bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields)
 	return 1;
     }
   }
+
+  /*
+    If table handler has primary key as part of the index, check that primary
+    key is not updated
+  */
+  if (idx != table->primary_key && table->primary_key < MAX_KEY &&
+      (table->file->table_flags() & HA_PRIMARY_KEY_IN_READ_INDEX))
+    return check_if_key_used(table, table->primary_key, fields);
   return 0;
 }