MiniOB
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MiniOB is one mini database, helping developers to learn how database works.
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src
observer
sql
optimizer
cascade
tasks
e_group_task.h
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/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
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miniob is licensed under Mulan PSL v2.
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You can use this software according to the terms and conditions of the Mulan PSL v2.
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You may obtain a copy of Mulan PSL v2 at:
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http://license.coscl.org.cn/MulanPSL2
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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 PSL v2 for more details. */
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#pragma once
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#include "sql/optimizer/cascade/tasks/cascade_task.h"
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#include "sql/optimizer/cascade/group.h"
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class
ExploreGroup
:
public
CascadeTask
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{
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public
:
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ExploreGroup
(
Group
*group,
OptimizerContext
*context)
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:
CascadeTask
(context, CascadeTaskType::EXPLORE_GROUP), group_(group)
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{}
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void
perform()
override
;
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private
:
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Group
*group_;
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};
CascadeTask
Definition:
cascade_task.h:32
ExploreGroup
ExploreGroup
Definition:
e_group_task.h:20
Group
A class representing a group within cascade optimizer.
Definition:
group.h:32
OptimizerContext
Definition:
optimizer_context.h:27
制作者
1.9.5