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Code Activity

Cleaned up SSL documentation

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Fixes for embedded server
Made key_cache more configurable
Fixed that one can change key blocksize in MyISAM
A lot of optimizations to make MyISAM slightly faster
This commit is contained in:
monty@hundin.mysql.fi
2001-10-02 05:53:00 +03:00
parent b5622e11dd
commit 880026ccf6
53 changed files with 793 additions and 611 deletions
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16
myisam/mi_range.c
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@ -45,7 +45,7 @@ ha_rows mi_records_in_range(MI_INFO *info, int inx, const byte *start_key,
if ((inx = _mi_check_index(info,inx)) < 0)
DBUG_RETURN(HA_POS_ERROR);
if (_mi_readinfo(info,F_RDLCK,1))
if (fast_mi_readinfo(info))
DBUG_RETURN(HA_POS_ERROR);
info->update&= (HA_STATE_CHANGED+HA_STATE_ROW_CHANGED);
if (info->s->concurrent_insert)
@ -58,7 +58,7 @@ ha_rows mi_records_in_range(MI_INFO *info, int inx, const byte *start_key,
info->state->records+ (ha_rows) 1);
if (info->s->concurrent_insert)
rw_unlock(&info->s->key_root_lock[inx]);
VOID(_mi_writeinfo(info,0));
fast_mi_writeinfo(info);
if (start_pos == HA_POS_ERROR || end_pos == HA_POS_ERROR)
DBUG_RETURN(HA_POS_ERROR);
DBUG_PRINT("info",("records: %ld",(ulong) (end_pos-start_pos)));
@ -72,7 +72,7 @@ ha_rows mi_records_in_range(MI_INFO *info, int inx, const byte *start_key,
static ha_rows _mi_record_pos(MI_INFO *info, const byte *key, uint key_len,
enum ha_rkey_function search_flag)
{
uint inx=(uint) info->lastinx;
uint inx=(uint) info->lastinx, nextflag;
MI_KEYDEF *keyinfo=info->s->keyinfo+inx;
uchar *key_buff;
double pos;
@ -86,8 +86,12 @@ static ha_rows _mi_record_pos(MI_INFO *info, const byte *key, uint key_len,
key_len=_mi_pack_key(info,inx,key_buff,(uchar*) key,key_len);
DBUG_EXECUTE("key",_mi_print_key(DBUG_FILE,keyinfo->seg,
(uchar*) key_buff,key_len););
nextflag=myisam_read_vec[search_flag];
if (!(nextflag & (SEARCH_FIND | SEARCH_NO_FIND | SEARCH_LAST)))
key_len=USE_WHOLE_KEY;
pos=_mi_search_pos(info,keyinfo,key_buff,key_len,
myisam_read_vec[search_flag] | SEARCH_SAVE_BUFF,
nextflag | SEARCH_SAVE_BUFF,
info->s->state.key_root[inx]);
if (pos >= 0.0)
{
@ -145,9 +149,9 @@ static double _mi_search_pos(register MI_INFO *info,
** Matches keynr+1
*/
offset=1.0; /* Matches keynr+1 */
if (nextflag & SEARCH_FIND &&
if ((nextflag & SEARCH_FIND) && nod_flag &&
((keyinfo->flag & (HA_NOSAME | HA_NULL_PART)) != HA_NOSAME ||
key_len) && nod_flag)
key_len != USE_WHOLE_KEY))
{
/*
** There may be identical keys in the tree. Try to match on of those.