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backported the fix for bug #34773 to 5.0

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This commit is contained in:
Georgi Kodinov 2008-12-09 20:35:02 +02:00
commit 979974c53b
8 changed files with 143 additions and 24 deletions
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4
sql/item.cc
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@ -6795,7 +6795,7 @@ enum_field_types Item_type_holder::get_real_type(Item *item)
*/
Item_sum *item_sum= (Item_sum *) item;
if (item_sum->keep_field_type())
return get_real_type(item_sum->args[0]);
return get_real_type(item_sum->get_arg(0));
break;
}
case FUNC_ITEM:
@ -7059,7 +7059,7 @@ void Item_type_holder::get_full_info(Item *item)
if (item->type() == Item::SUM_FUNC_ITEM &&
(((Item_sum*)item)->sum_func() == Item_sum::MAX_FUNC ||
((Item_sum*)item)->sum_func() == Item_sum::MIN_FUNC))
item = ((Item_sum*)item)->args[0];
item = ((Item_sum*)item)->get_arg(0);
/*
We can have enum/set type after merging only if we have one enum|set
field (or MIN|MAX(enum|set field)) and number of NULL fields