diff options
Diffstat (limited to 'sql/key.h')
| -rw-r--r-- | sql/key.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sql/key.h b/sql/key.h new file mode 100644 index 00000000000..90296427dac --- /dev/null +++ b/sql/key.h @@ -0,0 +1,41 @@ +/* Copyright (c) 2006, 2013, 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 02110-1301 USA */ + +#ifndef KEY_INCLUDED +#define KEY_INCLUDED + +#include "my_global.h" /* uchar */ + +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, uchar *from_record, KEY *key_info, uint key_length); +void key_restore(uchar *to_record, 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 *form,uint index); +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); +extern "C" int key_rec_cmp(void *key_info, uchar *a, uchar *b); + +#endif /* KEY_INCLUDED */ |