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diff --git a/sql/partition_element.h b/sql/partition_element.h
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+/* Copyright (C) 2000,2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+   
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface			/* gcc class implementation */
+#endif
+
+/**
+ * An enum and a struct to handle partitioning and subpartitioning.
+ */
+enum partition_type {
+  NOT_A_PARTITION= 0,
+  RANGE_PARTITION,
+  HASH_PARTITION,
+  LIST_PARTITION
+};
+
+enum partition_state {
+  PART_NORMAL= 0,
+  PART_IS_DROPPED= 1,
+  PART_TO_BE_DROPPED= 2,
+  PART_TO_BE_ADDED= 3,
+  PART_TO_BE_REORGED= 4,
+  PART_REORGED_DROPPED= 5,
+  PART_CHANGED= 6,
+  PART_IS_CHANGED= 7,
+  PART_IS_ADDED= 8
+};
+
+class partition_element :public Sql_alloc {
+public:
+  List<partition_element> subpartitions;
+  List<longlong> list_val_list;
+  ulonglong part_max_rows;
+  ulonglong part_min_rows;
+  char *partition_name;
+  char *tablespace_name;
+  longlong range_value;
+  char* part_comment;
+  char* data_file_name;
+  char* index_file_name;
+  handlerton *engine_type;
+  enum partition_state part_state;
+  uint16 nodegroup_id;
+  
+  partition_element()
+  : part_max_rows(0), part_min_rows(0), partition_name(NULL),
+    tablespace_name(NULL), range_value(0), part_comment(NULL),
+    data_file_name(NULL), index_file_name(NULL),
+    engine_type(NULL),part_state(PART_NORMAL),
+    nodegroup_id(UNDEF_NODEGROUP)
+  {
+    subpartitions.empty();
+    list_val_list.empty();
+  }
+  ~partition_element() {}
+};