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MDEV-8330 Get rid of Item_func::select_optimize() and Item_func::optimize_type

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This commit is contained in:
Alexander Barkov
2015-06-28 14:29:51 +04:00
parent 55d8ee5f70
commit ee0237fe89
5 changed files with 41 additions and 24 deletions
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28
sql/opt_range.cc
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@@ -8203,19 +8203,41 @@ SEL_TREE *Item_equal::get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr)
SEL_TREE *Item_func::get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr)
{
DBUG_ENTER("Item_func::get_mm_tree");
DBUG_RETURN(const_item() ? get_mm_tree_for_const(param, this) : NULL);
}
SEL_TREE *Item_func_null_predicate::get_mm_tree(RANGE_OPT_PARAM *param,
Item **cond_ptr)
{
DBUG_ENTER("Item_func_null_predicate::get_mm_tree");
if (const_item())
DBUG_RETURN(get_mm_tree_for_const(param, this));
param->cond= this;
if (args[0]->real_item()->type() == Item::FIELD_ITEM)
{
Item_field *field_item= (Item_field*) args[0]->real_item();
if (!field_item->const_item())
DBUG_RETURN(get_full_func_mm_tree(param, this, field_item, NULL, false));
}
DBUG_RETURN(NULL);
}
if (select_optimize() == Item_func::OPTIMIZE_NONE)
DBUG_RETURN(0);
SEL_TREE *Item_bool_func2::get_mm_tree(RANGE_OPT_PARAM *param, Item **cond_ptr)
{
DBUG_ENTER("Item_bool_func2::get_mm_tree");
if (const_item())
DBUG_RETURN(get_mm_tree_for_const(param, this));
param->cond= this;
SEL_TREE *ftree= 0;
DBUG_ASSERT(arg_count == 2);
if (arguments()[0]->real_item()->type() == Item::FIELD_ITEM)
{
Item_field *field_item= (Item_field*) (arguments()[0]->real_item());
Item *value= arg_count > 1 ? arguments()[1] : NULL;
Item *value= arguments()[1];
if (value && value->is_expensive())
DBUG_RETURN(0);
if (!arguments()[0]->real_item()->const_item())