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add VARIANCE function

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This commit is contained in:
vva@eagle.mysql.r18.ru
2002-12-14 03:36:59 +04:00
parent 710881e4fb
commit b624df724b
14 changed files with 129 additions and 62 deletions
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5
sql/sql_select.cc
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@ -3773,13 +3773,14 @@ 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: