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doris/be/src/exec/table_function_node.h
Mingyu Chen e77e2b0bf0 [improvement](lateral-view) Add number rows filtered in profile (#8251)
Add `RowsFiltered` counter in TableFunctionNode profile.
So that we can know the total number of rows that TableFunctionNode processed
2022-03-01 11:04:57 +08:00

83 lines
2.5 KiB
C++

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#pragma once
#include "exec/exec_node.h"
namespace doris {
class MemPool;
class RowBatch;
class TableFunction;
class TupleRow;
// TableFunctionNode
class TableFunctionNode : public ExecNode {
public:
TableFunctionNode(ObjectPool* pool, const TPlanNode& tnode, const DescriptorTbl& descs);
~TableFunctionNode();
virtual Status init(const TPlanNode& tnode, RuntimeState* state = nullptr);
virtual Status prepare(RuntimeState* state);
virtual Status open(RuntimeState* state);
virtual Status get_next(RuntimeState* state, RowBatch* row_batch, bool* eos);
virtual Status close(RuntimeState* state);
private:
Status _prepare_output_slot_ids(const TPlanNode& tnode);
// return:
// 0: all fns are eos
// -1: all fns are not eos
// >0: some of fns are eos
int _find_last_fn_eos_idx();
Status _process_next_child_row();
bool _roll_table_functions(int last_eos_idx);
private:
int64_t _cur_child_offset = 0;
TupleRow* _cur_child_tuple_row = nullptr;
std::shared_ptr<RowBatch> _cur_child_batch;
// true means current child batch is completely consumed.
// we should get next batch from child node.
bool _child_batch_exhausted = true;
std::vector<ExprContext*> _fn_ctxs;
std::vector<TableFunction*> _fns;
std::vector<void*> _fn_values;
int _fn_num = 0;
// std::unordered_set<SlotId> _output_slot_ids;
std::vector<bool> _output_slot_ids;
int _parent_tuple_desc_size = -1;
int _child_tuple_desc_size = -1;
std::vector<int> _child_slot_sizes;
// indicate if child node reach the end
bool _child_eos = false;
RuntimeProfile::Counter* _num_rows_filtered_counter = nullptr;
uint64_t _num_rows_filtered = 0;
};
}; // namespace doris