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add VARIANCE function

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mysql-test/r/func_group.result:
  add 'VARIANCE' tests
mysql-test/r/having.result:
  add 'VARIANCE' tests
mysql-test/r/select.result:
  add 'VARIANCE' tests
mysql-test/t/func_group.test:
  add 'VARIANCE' tests
mysql-test/t/having.test:
  add 'VARIANCE' tests
mysql-test/t/select.test:
  add 'VARIANCE' tests
sql/item.cc:
  add 'VARIANCE' sum function
sql/item.h:
  add 'VARIANCE' sum function
sql/item_sum.cc:
  add 'VARIANCE' sum function
sql/item_sum.h:
  add 'VARIANCE' sum function
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
This commit is contained in:
unknown
2002-12-14 03:36:59 +04:00
parent 3b33f0c2c1
commit e10f255dd6
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: