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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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45
heap/hp_rkey.c
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@ -16,10 +16,12 @@
#include "heapdef.h"
int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key)
int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key,
uint key_len, enum ha_rkey_function find_flag)
{
byte *pos;
HP_SHARE *share=info->s;
HP_KEYDEF *keyinfo = share->keydef+inx;
DBUG_ENTER("heap_rkey");
DBUG_PRINT("enter",("base: %lx inx: %d",info,inx));
@ -30,15 +32,44 @@ int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key)
info->lastinx=inx;
info->current_record = (ulong) ~0L; /* For heap_rrnd() */
if (!(pos=_hp_search(info,share->keydef+inx,key,0)))
if (keyinfo->algorithm == HA_KEY_ALG_BTREE)
{
info->update=0;
DBUG_RETURN(my_errno);
heap_rb_param custom_arg;
hp_rb_pack_key(info, inx, info->recbuf, key, key_len);
custom_arg.keyseg = info->s->keydef[inx].seg;
custom_arg.key_length = key_len;
custom_arg.search_flag = SEARCH_FIND | SEARCH_SAME;
/* for next rkey() after deletion */
if (find_flag == HA_READ_AFTER_KEY)
info->last_find_flag = HA_READ_KEY_OR_NEXT;
else if (find_flag == HA_READ_BEFORE_KEY)
info->last_find_flag = HA_READ_KEY_OR_PREV;
else
info->last_find_flag = find_flag;
info->lastkey_len = key_len;
if (!(pos = tree_search_key(&keyinfo->rb_tree, info->recbuf, info->parents,
&info->last_pos, find_flag, &custom_arg)))
{
info->update = 0;
DBUG_RETURN(my_errno = HA_ERR_KEY_NOT_FOUND);
}
memcpy(&pos, pos + keyinfo->ref_offs, sizeof(byte*));
info->current_ptr = pos;
}
else
{
if (!(pos=hp_search(info,share->keydef+inx,key,0)))
{
info->update=0;
DBUG_RETURN(my_errno);
}
if (!(keyinfo->flag & HA_NOSAME))
memcpy(info->lastkey,key,(size_t) keyinfo->length);
}
memcpy(record,pos,(size_t) share->reclength);
info->update=HA_STATE_AKTIV;
if (!(share->keydef[inx].flag & HA_NOSAME))
memcpy(info->lastkey,key,(size_t) share->keydef[inx].length);
DBUG_RETURN(0);
}
@ -47,5 +78,5 @@ int heap_rkey(HP_INFO *info, byte *record, int inx, const byte *key)
gptr heap_find(HP_INFO *info, int inx, const byte *key)
{
return _hp_search(info,info->s->keydef+inx,key,0);
return hp_search(info, info->s->keydef + inx, key, 0);
}