57 lines
1.5 KiB
C++
57 lines
1.5 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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#ifndef OCEANBASE_BASIC_OB_VALUES_OP_H_
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#define OCEANBASE_BASIC_OB_VALUES_OP_H_
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#include "common/row/ob_row_store.h"
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#include "sql/engine/ob_operator.h"
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namespace oceanbase
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{
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namespace sql
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{
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//
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// Values operator is only use in explain statement to hold the explain result.
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//
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class ObValuesSpec : public ObOpSpec
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{
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OB_UNIS_VERSION_V(1);
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public:
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ObValuesSpec(common::ObIAllocator &alloc, const ObPhyOperatorType type);
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common::ObRowStore row_store_;
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};
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class ObValuesOp : public ObOperator
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{
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public:
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ObValuesOp(ObExecContext &exec_ctx, const ObOpSpec &spec, ObOpInput *input);
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virtual int inner_open() override;
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virtual int inner_rescan() override;
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virtual int inner_get_next_row() override;
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virtual void destroy() override { ObOperator::destroy(); }
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private:
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common::ObNewRow cur_row_;
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common::ObRowStore::Iterator row_store_it_;
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};
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} // end namespace sql
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} // end namespace oceanbase
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#endif // OCEANBASE_BASIC_OB_VALUES_OP_H_
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