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MDEV-16408 Remove tests for Item::type() in Item_basic_value::eq()

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This commit is contained in:
Alexander Barkov
2018-06-05 22:26:24 +04:00
parent f4dfc609cf
commit 395212446a
6 changed files with 283 additions and 107 deletions
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62
sql/sql_type.cc
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@ -6356,3 +6356,65 @@ bool Type_handler_general_purpose_string::
}
/***************************************************************************/
bool Type_handler_null::Item_basic_value_eq(const Item_basic_value *a,
const Item_basic_value *b)
const
{
return a->basic_const_item() &&
b->basic_const_item();
}
bool Type_handler_real_result::Item_basic_value_eq(const Item_basic_value *a,
const Item_basic_value *b)
const
{
return a->basic_const_item() &&
b->basic_const_item() &&
const_cast<Item_basic_value*>(a)->val_real() ==
const_cast<Item_basic_value*>(b)->val_real();
}
bool Type_handler_int_result::Item_basic_value_eq(const Item_basic_value *a,
const Item_basic_value *b)
const
{
longlong value;
return a->basic_const_item() &&
b->basic_const_item() &&
(value= const_cast<Item_basic_value*>(a)->val_int()) ==
const_cast<Item_basic_value*>(b)->val_int() &&
(value >= 0 || a->unsigned_flag == b->unsigned_flag);
}
bool Type_handler_string_result::Item_basic_value_eq(const Item_basic_value *a,
const Item_basic_value *b)
const
{
if (!a->basic_const_item() ||
!b->basic_const_item() ||
a->collation.collation != b->collation.collation)
return false;
String *sa= const_cast<Item_basic_value*>(a)->val_str(NULL);
String *sb= const_cast<Item_basic_value*>(b)->val_str(NULL);
return sa->eq(sb, a->collation.collation);
}
bool
Type_handler_string_result::Item_basic_value_bin_eq(const Item_basic_value *a,
const Item_basic_value *b)
const
{
if (!a->basic_const_item() ||
!b->basic_const_item())
return false;
String *sa= const_cast<Item_basic_value*>(a)->val_str(NULL);
String *sb= const_cast<Item_basic_value*>(b)->val_str(NULL);
return sa->bin_eq(sb);
}
/***************************************************************************/