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Copy pathob_log_join_filter.cpp
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169 lines (160 loc) · 5.89 KB
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/*
* Copyright (c) 2025 OceanBase.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define USING_LOG_PREFIX SQL_OPT
#include "sql/optimizer/ob_log_join_filter.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
using namespace oceanbase::sql::log_op_def;
const char *ObLogJoinFilter::get_name() const
{
const char *name = NULL;
if (is_partition_filter()) {
name = is_create_ ? "PART JOIN FILTER CREATE" : "INVALID JOIN FILTER";
} else {
name = is_create_ ? "JOIN FILTER CREATE" : "JOIN FILTER USE";
}
return name;
}
int ObLogJoinFilter::est_cost()
{
int ret = OB_SUCCESS;
ObLogicalOperator *first_child = get_child(ObLogicalOperator::first_child);
if (OB_ISNULL(first_child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("first_child is null", K(ret));
} else {
// refine this
set_op_cost(0.0);
set_cost(first_child->get_cost());
set_card(first_child->get_card());
}
return ret;
}
int ObLogJoinFilter::get_op_exprs(ObIArray<ObRawExpr*> &all_exprs)
{
int ret = OB_SUCCESS;
if (NULL != calc_tablet_id_expr_ && OB_FAIL(all_exprs.push_back(calc_tablet_id_expr_))) {
LOG_WARN("failed to push back expr", K(ret));
} else if (OB_FAIL(append(all_exprs, join_exprs_))) {
LOG_WARN("failed to add exprs", K(ret));
} else if (OB_FAIL(append(all_exprs, all_join_key_left_exprs_))) {
LOG_WARN("failed to add exprs", K(ret));
} else if (OB_FAIL(ObLogicalOperator::get_op_exprs(all_exprs))) {
LOG_WARN("failed to get op exprs", K(ret));
} else { /*do nothing*/ }
return ret;
}
uint64_t ObLogJoinFilter::hash(uint64_t seed) const
{
seed = do_hash(is_create_, seed);
seed = ObLogicalOperator::hash(seed);
return seed;
}
int ObLogJoinFilter::inner_replace_op_exprs(ObRawExprReplacer &replacer)
{
int ret = OB_SUCCESS;
if (OB_FAIL(replace_exprs_action(replacer, join_exprs_))) {
LOG_WARN("failed to replace join exprs", K(ret));
} else if (OB_NOT_NULL(calc_tablet_id_expr_)
&& OB_FAIL(replace_expr_action(replacer, calc_tablet_id_expr_))) {
LOG_WARN("failed to replace calc_tablet_id_expr_", K(ret));
} else if (is_create_ && OB_FAIL(replace_exprs_action(replacer, all_join_key_left_exprs_))) {
LOG_WARN("failed to replace all_join_key_left_exprs_", K(ret));
} else if (!is_create_ && OB_FAIL(replace_exprs_action(replacer, join_filter_exprs_))) {
LOG_WARN("failed to replace join_filter_exprs_", K(ret));
} else if (!is_create_ && (&replacer != &get_plan()->gen_col_replacer())
&& OB_FAIL(replace_exprs_action(get_plan()->gen_col_replacer(), join_filter_exprs_))) {
LOG_WARN("failed to replace join_filter_exprs_", K(ret));
}
return ret;
}
int ObLogJoinFilter::get_plan_item_info(PlanText &plan_text,
ObSqlPlanItem &plan_item)
{
int ret = OB_SUCCESS;
bool is_first = false;
static const char *join_filter_type_name[] =
{"bloom", "range", "in"};
int64_t arr_len = sizeof(join_filter_type_name) / sizeof(const char *);
if (OB_FAIL(ObLogicalOperator::get_plan_item_info(plan_text, plan_item))) {
LOG_WARN("failed to get plan item info", K(ret));
} else if (OB_INVALID_ID != get_filter_id()) {
BEGIN_BUF_PRINT;
if (OB_FAIL(BUF_PRINTF(":RF%04ld", get_filter_id()))) {
LOG_WARN("failed to print str", K(ret));
}
END_BUF_PRINT(plan_item.object_alias_,
plan_item.object_alias_len_);
}
if (OB_SUCC(ret) && is_create_) {
BEGIN_BUF_PRINT;
int64_t idx = 0;
const char *type_name = nullptr;
if (OB_FAIL(BUF_PRINTF("RF_TYPE("))) {
LOG_WARN("fail to print rf", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && i < join_filter_types_.count(); ++i) {
idx = (int64_t)(join_filter_types_.at(i)) - 1;
if (idx >= arr_len || idx < 0) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected type", K(ret));
} else if (FALSE_IT(type_name = join_filter_type_name[idx])) {
} else if (is_first && OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("BUF_PRINTF fails", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%.*s",
(int)strlen(type_name),
type_name))) {
LOG_WARN("BUF_PRINTF fails", K(ret));
} else {
is_first = true;
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to print rf", K(ret));
}
}
if (OB_SUCC(ret)) {
if (!join_exprs_.empty()) {
if (OB_FAIL(BUF_PRINTF(", RF_EXPR["))) {
LOG_WARN("fail to print rf", K(ret));
} else {
if (OB_ISNULL(calc_tablet_id_expr_)) {
int cnt = join_exprs_.count();
for (int i = 0; i < cnt && OB_SUCC(ret); ++i) {
if (OB_FAIL(join_exprs_.at(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get name", K(ret));
} else if (i != cnt - 1 && OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to print buf", K(ret));
}
}
} else {
if (OB_FAIL(calc_tablet_id_expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get name", K(ret));
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(BUF_PRINTF("]"))) {
LOG_WARN("fail to print buf", K(ret));
}
}
}
}
END_BUF_PRINT(plan_item.special_predicates_,
plan_item.special_predicates_len_);
}
return ret;
}