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[opt](scan) merge small tablets into one scanner
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| // 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. | ||
|
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| #include "vec/exec/scan/union_scanner.h" | ||
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| namespace doris::vectorized { | ||
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| Status UnionScanner::init() { | ||
| for (auto& scanner : _olap_scanners) { | ||
| RETURN_IF_ERROR(scanner->init()); | ||
| } | ||
| _is_init = true; | ||
| return Status::OK(); | ||
| } | ||
|
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| Status UnionScanner::prepare(RuntimeState* state, const VExprContextSPtrs& conjuncts) { | ||
| RETURN_IF_ERROR(VScanner::prepare(state, conjuncts)); | ||
| for (auto& scanner : _olap_scanners) { | ||
| RETURN_IF_ERROR(scanner->prepare(state, conjuncts)); | ||
| } | ||
| return Status::OK(); | ||
| } | ||
|
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| Status UnionScanner::open(RuntimeState* state) { | ||
| RETURN_IF_ERROR(_olap_scanners[0]->open(state)); | ||
| return Status::OK(); | ||
| } | ||
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| Status UnionScanner::close(RuntimeState* state) { | ||
| if (_scanner_cursor != _olap_scanners.size()) { | ||
| RETURN_IF_ERROR(_olap_scanners[_scanner_cursor]->close(state)); | ||
| } | ||
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| return Status::OK(); | ||
| } | ||
|
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| void UnionScanner::set_compound_filters(const std::vector<TCondition>& compound_filters) { | ||
| for (auto& scanner : _olap_scanners) { | ||
| scanner->set_compound_filters(compound_filters); | ||
| } | ||
| } | ||
|
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| TabletStorageType UnionScanner::get_storage_type() { | ||
| return _olap_scanners[0]->get_storage_type(); | ||
| } | ||
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| Status UnionScanner::_get_block_impl(RuntimeState* state, Block* block, bool* eos) { | ||
| if (_scanner_cursor == _olap_scanners.size()) [[unlikely]] { | ||
| *eos = true; | ||
| return Status::OK(); | ||
| } | ||
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| do { | ||
| auto& scanner = _olap_scanners[_scanner_cursor]; | ||
| bool inner_eos = false; | ||
| *eos = false; | ||
| RETURN_IF_ERROR(scanner->get_block(state, block, &inner_eos)); | ||
|
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| if (inner_eos) { | ||
| scanner->_collect_profile_before_close(); | ||
| RETURN_IF_ERROR(scanner->close(state)); | ||
| _scanner_cursor++; | ||
| if (_scanner_cursor != _olap_scanners.size()) { | ||
| RETURN_IF_ERROR(_olap_scanners[_scanner_cursor]->open(state)); | ||
| } else { | ||
| break; | ||
| } | ||
| } | ||
| } while (block->empty()); | ||
| return Status::OK(); | ||
| } | ||
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| void UnionScanner::_collect_profile_before_close() { | ||
| if (_scanner_cursor != _olap_scanners.size()) { | ||
| _olap_scanners[_scanner_cursor]->_collect_profile_before_close(); | ||
| } | ||
| } | ||
|
|
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| } // namespace doris::vectorized |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // 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. | ||
|
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| #pragma once | ||
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| #include <memory> | ||
| #include <string> | ||
| #include <utility> | ||
| #include <vector> | ||
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| #include "common/factory_creator.h" | ||
| #include "common/status.h" | ||
| #include "vec/exec/scan/new_olap_scanner.h" | ||
| #include "vec/exec/scan/vscanner.h" | ||
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| namespace doris::vectorized { | ||
|
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| /** | ||
| `UnionScanner` contains more than 1 `NewOlapScanner` | ||
| */ | ||
| class UnionScanner : public VScanner { | ||
| ENABLE_FACTORY_CREATOR(UnionScanner) | ||
| public: | ||
| UnionScanner(RuntimeState* state, pipeline::ScanLocalStateBase* local_state, int64_t limit, | ||
| RuntimeProfile* profile) | ||
| : VScanner(state, local_state, limit, profile) { | ||
| _is_init = false; | ||
| } | ||
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| void add_scanner(std::shared_ptr<NewOlapScanner> scanners) { | ||
| _olap_scanners.emplace_back(std::move(scanners)); | ||
| } | ||
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| [[nodiscard]] std::shared_ptr<NewOlapScanner> get_single_scanner() { | ||
| DCHECK_EQ(_olap_scanners.size(), 1); | ||
| return std::move(_olap_scanners[0]); | ||
| } | ||
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| [[nodiscard]] size_t get_scanners_count() const { return _olap_scanners.size(); } | ||
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| Status init() override; | ||
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| Status prepare(RuntimeState* state, const VExprContextSPtrs& conjuncts) override; | ||
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| Status open(RuntimeState* state) override; | ||
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| Status close(RuntimeState* state) override; | ||
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| void set_compound_filters(const std::vector<TCondition>& compound_filters) override; | ||
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| doris::TabletStorageType get_storage_type() override; | ||
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| std::string get_name() override { return "UnionScanner"; } | ||
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| protected: | ||
| Status _get_block_impl(RuntimeState* state, Block* block, bool* eos) override; | ||
| void _collect_profile_before_close() override; | ||
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| private: | ||
| size_t _scanner_cursor {0}; | ||
| std::vector<std::shared_ptr<NewOlapScanner>> _olap_scanners; | ||
| }; | ||
|
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| } // namespace doris::vectorized |
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