104 lines
2.7 KiB
C++
104 lines
2.7 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_SQL_ENGINE_BASIC_OB_EXPR_VALUES_OP_
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#define OCEANBASE_SQL_ENGINE_BASIC_OB_EXPR_VALUES_OP_
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#include "sql/engine/ob_operator.h"
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#include "sql/engine/expr/ob_datum_cast.h"
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namespace oceanbase {
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namespace sql {
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class ObPhyOpSeriCtx;
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class ObExprValuesOpInput : public ObOpInput {
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OB_UNIS_VERSION_V(1);
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public:
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ObExprValuesOpInput(ObExecContext& ctx, const ObOpSpec& spec) : ObOpInput(ctx, spec), partition_id_values_(0)
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{}
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virtual ~ObExprValuesOpInput()
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{}
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virtual void reset() override
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{}
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virtual int init(ObTaskInfo& task_info)
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{
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UNUSED(task_info);
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return common::OB_SUCCESS;
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}
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public:
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int64_t partition_id_values_;
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};
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class ObExprValuesSpec : public ObOpSpec {
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OB_UNIS_VERSION_V(1);
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public:
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ObExprValuesSpec(common::ObIAllocator& alloc, const ObPhyOperatorType type)
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: ObOpSpec(alloc, type), values_(alloc), str_values_array_(alloc)
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{}
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int64_t get_value_count() const
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{
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return values_.count();
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}
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virtual int serialize(char* buf, int64_t buf_len, int64_t& pos, ObPhyOpSeriCtx& seri_ctx) const override;
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virtual int64_t get_serialize_size(const ObPhyOpSeriCtx& seri_ctx) const override;
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int64_t get_serialize_size_(const ObPhyOpSeriCtx& seri_ctx) const;
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprValuesSpec);
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public:
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common::ObFixedArray<ObExpr*, common::ObIAllocator> values_;
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common::ObFixedArray<ObStrValues, common::ObIAllocator> str_values_array_;
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};
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class ObExprValuesOp : public ObOperator {
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public:
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ObExprValuesOp(ObExecContext& exec_ctx, const ObOpSpec& spec, ObOpInput* input);
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virtual int inner_open() override;
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virtual int rescan() override;
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virtual int switch_iterator() override;
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virtual int inner_get_next_row() override;
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virtual int inner_close() override;
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virtual void destroy() override
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{
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ObOperator::destroy();
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}
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private:
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int calc_next_row();
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int get_value_count();
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprValuesOp);
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private:
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int64_t node_idx_;
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int64_t vector_index_;
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ObDatumCaster datum_caster_;
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common::ObCastMode cm_;
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int64_t value_count_;
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bool switch_value_;
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};
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} // end namespace sql
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} // end namespace oceanbase
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#endif
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