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+/* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
+
+ 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; version 2 of the License.
+
+ 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#ifndef KEY_INCLUDED
+#define KEY_INCLUDED
+
+class Field;
+class String;
+struct TABLE;
+typedef struct st_bitmap MY_BITMAP;
+typedef struct st_key KEY;
+typedef struct st_key_part_info KEY_PART_INFO;
+
+int find_ref_key(KEY *key, uint key_count, uchar *record, Field *field,
+ uint *key_length, uint *keypart);
+void key_copy(uchar *to_key, const uchar *from_record, const KEY *key_info,
+ uint key_length, bool with_zerofill= FALSE);
+void key_restore(uchar *to_record, const uchar *from_key, KEY *key_info,
+ uint key_length);
+bool key_cmp_if_same(TABLE *form,const uchar *key,uint index,uint key_length);
+void key_unpack(String *to, TABLE *table, KEY *key);
+void field_unpack(String *to, Field *field, const uchar *rec, uint max_length,
+ bool prefix_key);
+bool is_key_used(TABLE *table, uint idx, const MY_BITMAP *fields);
+int key_cmp(KEY_PART_INFO *key_part, const uchar *key, uint key_length);
+ulong key_hashnr(KEY *key_info, uint used_key_parts, const uchar *key);
+bool key_buf_cmp(KEY *key_info, uint used_key_parts,
+ const uchar *key1, const uchar *key2);
+extern "C" int key_rec_cmp(void *key_info, uchar *a, uchar *b);
+int key_tuple_cmp(KEY_PART_INFO *part, uchar *key1, uchar *key2, uint tuple_length);
+
+#endif /* KEY_INCLUDED */