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Merge sinisa@work.mysql.com:/home/bk/mysql-4.1

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into sinisa.nasamreza.org:/mnt/work/mysql-4.1
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Sinisa@sinisa.nasamreza.org
2002-12-14 15:15:23 +02:00
parent f9d38ef2f8 a690ba43e4
commit ab70ad7c1e
35 changed files with 1382 additions and 316 deletions
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15
sql/sql_select.cc
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@ -793,6 +793,16 @@ JOIN::exec()
HA_POS_ERROR)))
DBUG_VOID_RETURN;
/*
We don't have to store rows in temp table that doesn't match HAVING if:
- we are sorting the table and writing complete group rows to the
temp table.
- We are using DISTINCT without resolving the distinct as a GROUP BY
on all columns.
If having is not handled here, it will be checked before the row
is sent to the client.
*/
if (having_list &&
(sort_and_group || (exec_tmp_table->distinct && !group_list)))
having=having_list;
@ -3775,13 +3785,14 @@ Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
else
return new Field_double(item_sum->max_length,maybe_null,
item->name, table, item_sum->decimals);
case Item_sum::STD_FUNC: /* Place for sum & count */
case Item_sum::VARIANCE_FUNC: /* Place for sum & count */
case Item_sum::STD_FUNC:
if (group)
return new Field_string(sizeof(double)*2+sizeof(longlong),
maybe_null, item->name,table,my_charset_bin);
else
return new Field_double(item_sum->max_length, maybe_null,
item->name,table,item_sum->decimals);
item->name,table,item_sum->decimals);
case Item_sum::UNIQUE_USERS_FUNC:
return new Field_long(9,maybe_null,item->name,table,1);
default: