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Merged (will need a post-merge fix)

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sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
This commit is contained in:
unknown 2004-12-13 20:10:07 +03:00
commit 75a43405d4
8 changed files with 50 additions and 7 deletions
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21
sql/item.h
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@ -835,6 +835,26 @@ public:
:Item_ident(db_par, table_name_par, field_name_par), ref(0) {}
Item_ref(Item **item, const char *table_name_par, const char *field_name_par)
:Item_ident(NullS, table_name_par, field_name_par), ref(item) {}
/*
This constructor is used when processing GROUP BY and referred Item is
available. We set all properties here because fix_fields() will not be
called for the created Item_ref. (see BUG#6976)
TODO check if we could get rid of *_name_par parameters and if we need to
perform similar initialization for other ctors.
TODO we probably fix a superset of problems like in BUG#6658. Check this
with Bar, and if we have a more broader set of problems like this.
*/
Item_ref(Item **item, const char *table_name_par,
const char *field_name_par, Item *src)
: Item_ident(NullS, table_name_par, field_name_par), ref(item)
{
collation.set(src->collation);
max_length= src->max_length;
decimals= src->decimals;
with_sum_func= src->with_sum_func;
maybe_null= src->maybe_null;
}
/* Constructor need to process subselect with temporary tables (see Item) */
Item_ref(THD *thd, Item_ref *item) :Item_ident(thd, item), ref(item->ref) {}
enum Type type() const { return REF_ITEM; }
@ -933,6 +953,7 @@ public:
class Item_in_subselect;
class Item_ref_null_helper: public Item_ref
{
protected: