hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

init push

Browse Source
This commit is contained in:
oceanbase-admin
2021-05-31 22:56:52 +08:00
commit cea7de1475
7020 changed files with 5689869 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
src/sql/optimizer/ob_log_material.cpp Normal file
View File

@ -0,0 +1,80 @@
/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX SQL_OPT
#include "ob_log_material.h"
#include "ob_log_operator_factory.h"
#include "sql/optimizer/ob_opt_est_cost.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
using namespace oceanbase::sql::log_op_def;
int ObLogMaterial::allocate_exchange_post(AllocExchContext* ctx)
{
int ret = OB_SUCCESS;
ObLogicalOperator* child = NULL;
UNUSED(ctx);
if (OB_ISNULL(child = get_child(first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (OB_FAIL(sharding_info_.copy_with_part_keys(child->get_sharding_info()))) {
LOG_WARN("failed to copy sharding info from children", K(ret));
} else { /*do nothing*/
}
return ret;
}
int ObLogMaterial::allocate_exchange(AllocExchContext* ctx, ObExchangeInfo& exch_info)
{
int ret = OB_SUCCESS;
ObLogicalOperator* child = NULL;
if (OB_ISNULL(ctx) || OB_ISNULL(child = get_child(first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret), K(ctx), K(get_child(first_child)));
} else if (OB_FAIL(child->allocate_exchange(ctx, exch_info))) {
LOG_WARN("failed to allocate exchange", K(ret));
} else { /*do nothing*/
}
return ret;
}
int ObLogMaterial::est_cost()
{
int ret = OB_SUCCESS;
ObLogicalOperator* child = get_child(ObLogicalOperator::first_child);
if (OB_ISNULL(child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("child is null", K(ret));
} else {
double op_cost = ObOptEstCost::cost_material(child->get_card(), child->get_width());
set_cost(child->get_cost() + op_cost);
set_op_cost(op_cost);
set_card(child->get_card());
set_width(child->get_width());
}
return ret;
}
int ObLogMaterial::re_est_cost(const ObLogicalOperator* parent, double need_row_count, bool& re_est)
{
int ret = OB_SUCCESS;
UNUSED(parent);
re_est = false;
if (need_row_count >= get_card()) {
/*do nothing*/
} else {
set_card(need_row_count);
re_est = true;
}
return ret;
}