3e160aeb66
fix a bug when using grouping sets without all column in a grouping set item will produce wrong value. fix grouping function check will not work in group by clause
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include "exec/exec_node.h"
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namespace doris {
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class Tuple;
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class RuntimeState;
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class RowBatch;
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// repeat tuple of children and set given slots to null, this class generates tuple rows according to the given
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// _repeat_id_list, and sets the value of the slot corresponding to the grouping function according to _grouping_list
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class RepeatNode : public ExecNode {
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public:
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RepeatNode(ObjectPool* pool, const TPlanNode& tnode, const DescriptorTbl& descs);
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~RepeatNode();
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virtual Status prepare(RuntimeState* state) override;
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virtual Status open(RuntimeState* state) override;
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virtual Status get_next(RuntimeState* state, RowBatch* row_batch, bool* eos) override;
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virtual Status close(RuntimeState* state) override;
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protected:
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virtual void debug_string(int indentation_level, std::stringstream* out) const override;
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private:
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Status get_repeated_batch(RowBatch* child_row_batch, int repeat_id_idx, RowBatch* row_batch);
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// Slot id set used to indicate those slots need to set to null.
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std::vector<std::set<SlotId>> _slot_id_set_list;
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// all slot id
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std::set<SlotId> _all_slot_ids;
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// An integer bitmap list, it indicates the bit position of the exprs not null.
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std::vector<int64_t> _repeat_id_list;
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std::vector<std::vector<int64_t>> _grouping_list;
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// Tulple id used for output, it has new slots.
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TupleId _output_tuple_id;
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const TupleDescriptor* _tuple_desc;
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std::unique_ptr<RowBatch> _child_row_batch;
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bool _child_eos;
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int _repeat_id_idx;
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RuntimeState* _runtime_state;
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};
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}
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