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Merge moonbone.local:/mnt/gentoo64/work/27590-bug-5.0-opt-mysql

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into  moonbone.local:/mnt/gentoo64/work/16377-bug-5.0-opt-mysql


mysql-test/r/subselect.result:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
This commit is contained in:
unknown 2007-04-27 00:13:13 +04:00
commit ed7a9e8bd4
15 changed files with 444 additions and 40 deletions
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27
sql/item_cmpfunc.h
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@ -35,12 +35,19 @@ class Arg_comparator: public Sql_alloc
Item_bool_func2 *owner;
Arg_comparator *comparators; // used only for compare_row()
double precision;
/* Fields used in DATE/DATETIME comparison. */
THD *thd;
enum_field_types a_type, b_type; // Types of a and b items
Item *a_cache, *b_cache; // Cached values of a and b items
bool is_nulls_eq; // TRUE <=> compare for the EQUAL_FUNC
enum enum_date_cmp_type { CMP_DATE_DFLT= 0, CMP_DATE_WITH_DATE,
CMP_DATE_WITH_STR, CMP_STR_WITH_DATE };
public:
DTCollation cmp_collation;
Arg_comparator() {};
Arg_comparator(Item **a1, Item **a2): a(a1), b(a2) {};
Arg_comparator(): thd(0), a_cache(0), b_cache(0) {};
Arg_comparator(Item **a1, Item **a2): a(a1), b(a2), thd(0),
a_cache(0), b_cache(0) {};
int set_compare_func(Item_bool_func2 *owner, Item_result type);
inline int set_compare_func(Item_bool_func2 *owner_arg)
@ -48,14 +55,10 @@ public:
return set_compare_func(owner_arg, item_cmp_type((*a)->result_type(),
(*b)->result_type()));
}
inline int set_cmp_func(Item_bool_func2 *owner_arg,
int set_cmp_func(Item_bool_func2 *owner_arg,
Item **a1, Item **a2,
Item_result type)
{
a= a1;
b= a2;
return set_compare_func(owner_arg, type);
}
Item_result type);
inline int set_cmp_func(Item_bool_func2 *owner_arg,
Item **a1, Item **a2)
{
@ -83,6 +86,10 @@ public:
int compare_e_row(); // compare args[0] & args[1]
int compare_real_fixed();
int compare_e_real_fixed();
int compare_datetime(); // compare args[0] & args[1] as DATETIMEs
static enum enum_date_cmp_type can_compare_as_dates(Item *a, Item *b,
ulonglong *const_val_arg);
static arg_cmp_func comparator_matrix [5][2];