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Merge with 4.0.13

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monty@narttu.mysql.fi
2003-05-19 16:35:49 +03:00
parent 524878e935 fc0df599dc
commit dd2b7918cd
317 changed files with 6662 additions and 3466 deletions
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12
sql/opt_range.cc
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@ -283,7 +283,7 @@ typedef struct st_qsel_param {
KEY_PART *key_parts,*key_parts_end,*key[MAX_KEY];
MEM_ROOT *mem_root;
table_map prev_tables,read_tables,current_table;
uint baseflag,keys,max_key_part;
uint baseflag, keys, max_key_part, range_count;
uint real_keynr[MAX_KEY];
char min_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH],
max_key[MAX_KEY_LENGTH+MAX_FIELD_WIDTH];
@ -709,8 +709,10 @@ int SQL_SELECT::test_quick_select(key_map keys_to_use, table_map prev_tables,
(double) keys_per_block);
}
else
found_read_time= head->file->read_time(found_records)+
(double) found_records / TIME_FOR_COMPARE;
found_read_time= (head->file->read_time(keynr,
param.range_count,
found_records)+
(double) found_records / TIME_FOR_COMPARE);
if (read_time > found_read_time)
{
read_time=found_read_time;
@ -2074,11 +2076,12 @@ check_quick_select(PARAM *param,uint idx,SEL_ARG *tree)
if (!tree)
DBUG_RETURN(HA_POS_ERROR); // Can't use it
param->max_key_part=0;
param->range_count=0;
if (tree->type == SEL_ARG::IMPOSSIBLE)
DBUG_RETURN(0L); // Impossible select. return
if (tree->type != SEL_ARG::KEY_RANGE || tree->part != 0)
DBUG_RETURN(HA_POS_ERROR); // Don't use tree
param->max_key_part=0;
records=check_quick_keys(param,idx,tree,param->min_key,0,param->max_key,0);
if (records != HA_POS_ERROR)
{
@ -2146,6 +2149,7 @@ check_quick_keys(PARAM *param,uint idx,SEL_ARG *key_tree,
}
keynr=param->real_keynr[idx];
param->range_count++;
if (!tmp_min_flag && ! tmp_max_flag &&
(uint) key_tree->part+1 == param->table->key_info[keynr].key_parts &&
(param->table->key_info[keynr].flags & HA_NOSAME) &&