97 lines
3.3 KiB
C++
97 lines
3.3 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_OPT
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#include "sql/optimizer/ob_log_temp_table_insert.h"
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#include "sql/optimizer/ob_opt_est_cost.h"
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#include "sql/resolver/dml/ob_select_stmt.h"
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#include "sql/ob_sql_utils.h"
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#include "sql/resolver/expr/ob_raw_expr_util.h"
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#include "sql/optimizer/ob_optimizer_util.h"
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#include "sql/optimizer/ob_log_operator_factory.h"
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#include "sql/optimizer/ob_log_plan.h"
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using namespace oceanbase::sql;
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using namespace oceanbase::common;
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using namespace oceanbase::share;
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using namespace oceanbase::sql::log_op_def;
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ObLogTempTableInsert::ObLogTempTableInsert(ObLogPlan &plan)
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: ObLogicalOperator(plan),
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temp_table_id_(OB_INVALID_ID),
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temp_table_name_()
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{
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}
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ObLogTempTableInsert::~ObLogTempTableInsert()
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{
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}
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int ObLogTempTableInsert::compute_sharding_info()
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{
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int ret = OB_SUCCESS;
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ObLogicalOperator *child = NULL;
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if (OB_ISNULL(get_plan()) ||
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OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get unexpected null", K(child), K(get_plan()), K(ret));
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} else if (child->is_match_all()) {
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//temp table insert is a data-shared operator, can not be match all
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strong_sharding_ = get_plan()->get_optimizer_context().get_local_sharding();
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} else if (child->is_single()) {
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strong_sharding_ = child->get_sharding();
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} else {
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strong_sharding_ = get_plan()->get_optimizer_context().get_distributed_sharding();
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}
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return ret;
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}
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int ObLogTempTableInsert::compute_op_ordering()
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{
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int ret = OB_SUCCESS;
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ObLogicalOperator *child = NULL;
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if (OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get unexpected null", K(child), K(ret));
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} else if (child->is_single()) {
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if (OB_FAIL(ObLogicalOperator::compute_op_ordering())) {
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LOG_WARN("failed to compute op ordering", K(ret));
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} else { /*do nothing*/ }
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} else { /*do nothing*/ }
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return ret;
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}
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int ObLogTempTableInsert::est_cost()
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{
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int ret = OB_SUCCESS;
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int64_t parallel = 0;
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ObLogicalOperator *child = NULL;
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if (OB_ISNULL(get_plan()) ||
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OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get unexpected null", K(ret));
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} else if (OB_UNLIKELY((parallel = child->get_parallel()) < 1)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get unexpected parallel degree", K(parallel), K(ret));
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} else {
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double per_dop_card = child->get_card() / parallel;
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ObOptimizerContext &opt_ctx = get_plan()->get_optimizer_context();
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double op_cost = ObOptEstCost::cost_material(per_dop_card,
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child->get_width(),
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opt_ctx.get_cost_model_type());
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set_op_cost(op_cost);
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set_cost(child->get_cost() + op_cost);
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set_card(child->get_card());
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}
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return ret;
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} |