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Merge perch.ndb.mysql.com:/home/jonas/src/mysql-4.1

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into  perch.ndb.mysql.com:/home/jonas/src/mysql-4.1-ndb
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jonas@perch.ndb.mysql.com
2006-10-27 23:56:51 +02:00
parent f4af143fcb 0612a212d1
commit dc2ca8ca10
23 changed files with 1374 additions and 253 deletions
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31
sql/sql_select.cc
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@ -1184,12 +1184,13 @@ JOIN::exec()
thd->examined_row_count= 0;
DBUG_VOID_RETURN;
}
/*
don't reset the found rows count if there're no tables
as FOUND_ROWS() may be called.
*/
/*
Don't reset the found rows count if there're no tables as
FOUND_ROWS() may be called. Never reset the examined row count here.
It must be accumulated from all join iterations of all join parts.
*/
if (tables)
thd->limit_found_rows= thd->examined_row_count= 0;
thd->limit_found_rows= 0;
if (zero_result_cause)
{
@ -1237,6 +1238,12 @@ JOIN::exec()
List<Item> *curr_all_fields= &all_fields;
List<Item> *curr_fields_list= &fields_list;
TABLE *curr_tmp_table= 0;
/*
Initialize examined rows here because the values from all join parts
must be accumulated in examined_row_count. Hence every join
iteration must count from zero.
*/
curr_join->examined_rows= 0;
/* Create a tmp table if distinct or if the sort is too complicated */
if (need_tmp)
@ -1585,7 +1592,10 @@ JOIN::exec()
error= thd->net.report_error ? -1 :
do_select(curr_join, curr_fields_list, NULL, procedure);
thd->limit_found_rows= curr_join->send_records;
thd->examined_row_count= curr_join->examined_rows;
/* Accumulate the counts from all join iterations of all join parts. */
thd->examined_row_count+= curr_join->examined_rows;
DBUG_PRINT("counts", ("thd->examined_row_count: %lu",
(ulong) thd->examined_row_count));
DBUG_VOID_RETURN;
}
@ -6191,6 +6201,8 @@ sub_select(JOIN *join,JOIN_TAB *join_tab,bool end_of_records)
return -2; /* purecov: inspected */
}
join->examined_rows++;
DBUG_PRINT("counts", ("join->examined_rows++: %lu",
(ulong) join->examined_rows));
join->thd->row_count++;
if (!on_expr || on_expr->val_int())
{
@ -9718,12 +9730,17 @@ bool JOIN::rollup_init()
while ((item= it++))
{
ORDER *group_tmp;
bool found_in_group= 0;
for (group_tmp= group_list; group_tmp; group_tmp= group_tmp->next)
{
if (*group_tmp->item == item)
{
item->maybe_null= 1;
found_in_group= 1;
}
}
if (item->type() == Item::FUNC_ITEM)
if (item->type() == Item::FUNC_ITEM && !found_in_group)
{
bool changed= FALSE;
if (change_group_ref(thd, (Item_func *) item, group_list, &changed))