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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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39
heap/hp_rfirst.c
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@ -20,14 +20,39 @@
int heap_rfirst(HP_INFO *info, byte *record)
{
HP_SHARE *share = info->s;
HP_KEYDEF *keyinfo = share->keydef + info->lastinx;
DBUG_ENTER("heap_rfirst");
if (!(info->s->records))
if (keyinfo->algorithm == HA_KEY_ALG_BTREE)
{
my_errno=HA_ERR_END_OF_FILE;
DBUG_RETURN(my_errno);
byte *pos;
if ((pos = tree_search_edge(&keyinfo->rb_tree, info->parents,
&info->last_pos, offsetof(TREE_ELEMENT, left))))
{
memcpy(&pos, pos + keyinfo->ref_offs, sizeof(byte*));
info->current_ptr = pos;
memcpy(record, pos, (size_t)share->reclength);
info->update = HA_STATE_AKTIV;
}
else
{
my_errno = HA_ERR_END_OF_FILE;
DBUG_RETURN(my_errno);
}
DBUG_RETURN(0);
}
else
{
if (!(info->s->records))
{
my_errno=HA_ERR_END_OF_FILE;
DBUG_RETURN(my_errno);
}
info->current_record=0;
info->current_hash_ptr=0;
info->update=HA_STATE_PREV_FOUND;
DBUG_RETURN(heap_rnext(info,record));
}
info->current_record=0;
info->current_hash_ptr=0;
info->update=HA_STATE_PREV_FOUND;
DBUG_RETURN(heap_rnext(info,record));
}