70 lines
2.1 KiB
C++
70 lines
2.1 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_FUNCTION_TABLE_OP_H_
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#define OCEANBASE_BASIC_OB_FUNCTION_TABLE_OP_H_
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#include "sql/engine/ob_operator.h"
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#include "sql/engine/basic/ob_chunk_datum_store.h"
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#include "lib/charset/ob_charset.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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class ObExpr;
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class ObFunctionTableSpec : public ObOpSpec
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{
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OB_UNIS_VERSION_V(1);
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public:
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ObFunctionTableSpec(common::ObIAllocator &alloc, const ObPhyOperatorType type)
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: ObOpSpec(alloc, type), value_expr_(nullptr), column_exprs_(alloc), has_correlated_expr_(false)
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{}
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ObExpr *value_expr_;
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common::ObFixedArray<ObExpr*, common::ObIAllocator> column_exprs_;
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bool has_correlated_expr_;
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};
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class ObFunctionTableOp : public ObOperator
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{
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public:
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ObFunctionTableOp(ObExecContext &exec_ctx, const ObOpSpec &spec, ObOpInput *input)
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: ObOperator(exec_ctx, spec, input),
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node_idx_(0),
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already_calc_(false),
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row_count_(0),
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col_count_(0),
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value_table_(NULL)
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{}
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virtual int inner_open() override;
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virtual int inner_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_get_next_batch(int64_t max_row_cnt) override;
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virtual int inner_close() override;
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virtual void destroy() override;
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private:
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int get_current_result(common::ObObj &result);
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int64_t node_idx_;
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bool already_calc_;
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int64_t row_count_;
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int64_t col_count_;
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common::ObObj value_;
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pl::ObPLCollection *value_table_;
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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_FUNCTION_TABLE_OP_H_ */ |