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Fix for BUG#20550: Stored function: wrong RETURN type metadata

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when used in a VIEW.

The problem was that wrong function (create_tmp_from_item())
was used to create a temporary field for Item_func_sp.

The fix is to use create_tmp_from_field().
This commit is contained in:
anozdrin/alik@station.
2007-10-05 16:35:01 +04:00
parent 7f554deb95
commit ac875690f7
4 changed files with 168 additions and 1 deletions
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30
sql/sql_select.cc
View File

@ -9301,6 +9301,36 @@ Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
}
/* Fall through */
case Item::FUNC_ITEM:
if (((Item_func *) item)->functype() == Item_func::FUNC_SP)
{
Item_func_sp *item_func_sp= (Item_func_sp *) item;
Field *sp_result_field= item_func_sp->get_sp_result_field();
if (make_copy_field)
{
DBUG_ASSERT(item_func_sp->result_field);
*from_field= item_func_sp->result_field;
}
else
{
*((*copy_func)++)= item;
}
Field *result_field=
create_tmp_field_from_field(thd,
sp_result_field,
item_func_sp->name,
table,
NULL,
convert_blob_length);
if (modify_item)
item->set_result_field(result_field);
return result_field;
}
/* Fall through */
case Item::COND_ITEM:
case Item::FIELD_AVG_ITEM:
case Item::FIELD_STD_ITEM: