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RB-Tree indexes support in HEAP tables

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Renamed _hp_func  ->  hp_func
mi_key_cmp moved to /mysys/my_handler.c
New tests for HEAP tables
This commit is contained in:
bar@gw.udmsearch.izhnet.ru
2002-04-25 13:36:55 +05:00
parent c917658988
commit eab2893dac
54 changed files with 2361 additions and 748 deletions
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37
include/heap.h
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@ -14,7 +14,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* This file should be included when using heap_database_funktions */
/* This file should be included when using heap_database_functions */
/* Author: Michael Widenius */
#ifndef _heap_h
@ -31,6 +31,9 @@ extern "C" {
#include <thr_lock.h>
#endif
#include "my_handler.h"
#include "my_tree.h"
/* defines used by heap-funktions */
#define HP_MAX_LEVELS 4 /* 128^5 records is enough */
@ -73,22 +76,22 @@ typedef struct st_heap_block /* The data is saved in blocks */
ulong last_allocated; /* Blocks allocated, used by keys */
} HP_BLOCK;
typedef struct st_hp_keyseg /* Key-portion */
{
uint start; /* Start of key in record (from 0) */
uint length; /* Keylength */
uint type;
uint null_bit; /* bit set in row+null_pos */
uint null_pos;
} HP_KEYSEG;
struct st_heap_info; /* For referense */
typedef struct st_hp_keydef /* Key definition with open */
{
uint flag; /* HA_NOSAME |<7C>HA_NULL_PART_KEY */
uint keysegs; /* Number of key-segment */
uint length; /* Length of key (automatic) */
HP_KEYSEG *seg;
uint8 algorithm; /* HASH / BTREE */
uint ref_offs; /* Data reference offset */
MI_KEYSEG *seg;
HP_BLOCK block; /* Where keys are saved */
TREE rb_tree;
int (*write_key)(struct st_heap_info *info, struct st_hp_keydef *keyinfo,
const byte *record, byte *recpos);
int (*delete_key)(struct st_heap_info *info, struct st_hp_keydef *keyinfo,
const byte *record, byte *recpos, int flag);
} HP_KEYDEF;
typedef struct st_heap_share
@ -126,6 +129,11 @@ typedef struct st_heap_info
int mode; /* Mode of file (READONLY..) */
uint opt_flag,update;
byte *lastkey; /* Last used key with rkey */
byte *recbuf; /* Record buffer for rb-tree keys */
enum ha_rkey_function last_find_flag;
TREE_ELEMENT *parents[MAX_TREE_HIGHT+1];
TREE_ELEMENT **last_pos;
uint lastkey_len;
#ifdef THREAD
THR_LOCK_DATA lock;
#endif
@ -156,7 +164,14 @@ extern int heap_rprev(HP_INFO *info,byte *record);
extern int heap_rfirst(HP_INFO *info,byte *record);
extern int heap_rlast(HP_INFO *info,byte *record);
extern void heap_clear(HP_INFO *info);
extern int heap_rkey(HP_INFO *info,byte *record,int inx,const byte *key);
ha_rows hp_rb_records_in_range(HP_INFO *info, int inx, const byte *start_key,
uint start_key_len,
enum ha_rkey_function start_search_flag,
const byte *end_key, uint end_key_len,
enum ha_rkey_function end_search_flag);
int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key,
uint key_len, enum ha_rkey_function find_flag);
extern gptr heap_find(HP_INFO *info,int inx,const byte *key);
extern int heap_check_heap(HP_INFO *info, my_bool print_status);
extern byte *heap_position(HP_INFO *info);