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2021-05-31 22:56:52 +08:00
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src/sql/optimizer/ob_log_temp_table_insert.cpp Normal file
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/**
* 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 "sql/optimizer/ob_log_temp_table_insert.h"
#include "sql/optimizer/ob_opt_est_cost.h"
#include "sql/resolver/dml/ob_select_stmt.h"
#include "sql/ob_sql_utils.h"
#include "sql/resolver/expr/ob_raw_expr_util.h"
#include "sql/optimizer/ob_optimizer_util.h"
#include "sql/optimizer/ob_log_operator_factory.h"
#include "sql/optimizer/ob_log_plan.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
using namespace oceanbase::share;
using namespace oceanbase::sql::log_op_def;
ObLogTempTableInsert::ObLogTempTableInsert(ObLogPlan& plan)
: ObLogicalOperator(plan), ref_table_id_(OB_INVALID_ID), temp_table_name_()
{}
ObLogTempTableInsert::~ObLogTempTableInsert()
{}
int ObLogTempTableInsert::allocate_exchange_post(AllocExchContext* ctx)
{
int ret = OB_SUCCESS;
UNUSED(ctx);
ObLogicalOperator* child = NULL;
if (OB_ISNULL(child = get_child(first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(child), K(ret));
} else if (child->get_sharding_info().is_distributed()) {
sharding_info_.set_location_type(child->get_sharding_info().get_location_type());
} else {
ret = sharding_info_.copy_with_part_keys(child->get_sharding_info());
}
return ret;
}
int ObLogTempTableInsert::est_cost()
{
int ret = OB_SUCCESS;
ObLogicalOperator* child = NULL;
if (OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else {
double op_cost = ObOptEstCost::cost_material(child->get_card(), child->get_width());
set_op_cost(op_cost);
set_cost(child->get_cost() + op_cost);
set_card(child->get_card());
set_width(child->get_width());
}
return ret;
}