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support of simple row subselects (SCRUM)

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mysql-test/r/subselect.result:
  test of simple row subselect
  fixed table droping
mysql-test/t/subselect.test:
  test of simple row subselect
  fixed table dropimg
sql/item.cc:
  Item_cache_str fixed to correctly store NULL and copy string value
sql/item.h:
  Item_cache_str fixed to correctly store NULL and copy string value
sql/item_cmpfunc.cc:
  support of simple row subselects
sql/item_subselect.cc:
  support of simple row subselects
sql/item_subselect.h:
  support of simple row subselects
sql/sql_class.cc:
  support of simple row subselects
This commit is contained in:
unknown
2002-12-19 07:38:33 +02:00
parent ea4f406baf
commit 86ccbe3727
8 changed files with 307 additions and 69 deletions
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5
sql/sql_class.cc
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@@ -931,8 +931,9 @@ bool select_singleval_subselect::send_data(List<Item> &items)
DBUG_RETURN(0);
}
List_iterator_fast<Item> li(items);
Item *val_item= li++; // Only one (single value subselect)
it->store(val_item);
Item *val_item;
for (uint i= 0; (val_item= li++); i++)
it->store(i, val_item);
it->assigned(1);
DBUG_RETURN(0);
}