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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


sql/sql_select.cc:
  Auto merged
This commit is contained in:
unknown
2006-10-27 23:56:51 +02:00
parent 3e2dacaeaf 0153d67e59
commit 142a448594
23 changed files with 1374 additions and 253 deletions
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13
sql/sql_base.cc
View File

@@ -821,7 +821,7 @@ TABLE *reopen_name_locked_table(THD* thd, TABLE_LIST* table_list)
if (!(table = table_list->table))
DBUG_RETURN(0);
char* db = thd->db ? thd->db : table_list->db;
char *db= table_list->db;
char* table_name = table_list->real_name;
char key[MAX_DBKEY_LENGTH];
uint key_length;
@@ -2284,12 +2284,19 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
const char *field_name=0;
const char *table_name=0;
bool found_unaliased_non_uniq= 0;
/*
true if the item that we search for is a valid name reference
(and not an item that happens to have a name).
*/
bool is_ref_by_name= 0;
uint unaliased_counter;
LINT_INIT(unaliased_counter);
*unaliased= FALSE;
if (find->type() == Item::FIELD_ITEM || find->type() == Item::REF_ITEM)
is_ref_by_name= (find->type() == Item::FIELD_ITEM ||
find->type() == Item::REF_ITEM);
if (is_ref_by_name)
{
field_name= ((Item_ident*) find)->field_name;
table_name= ((Item_ident*) find)->table_name;
@@ -2401,7 +2408,7 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
}
}
else if (!table_name && (item->eq(find,0) ||
find->name && item->name &&
is_ref_by_name && find->name && item->name &&
!my_strcasecmp(system_charset_info,
item->name,find->name)))
{

31
sql/sql_select.cc
View File

@@ -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))