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Extract common parts of ApplySnapshot (#8110)
ref #8081
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dbms/src/Storages/DeltaMerge/BoundedSSTFilesToBlockInputStream.cpp
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| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed 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. | ||
|
|
||
| #include <Interpreters/Context.h> | ||
| #include <Poco/File.h> | ||
| #include <Storages/DeltaMerge/DMVersionFilterBlockInputStream.h> | ||
| #include <Storages/DeltaMerge/DeltaMergeStore.h> | ||
| #include <Storages/DeltaMerge/File/DMFileBlockOutputStream.h> | ||
| #include <Storages/DeltaMerge/PKSquashingBlockInputStream.h> | ||
| #include <Storages/DeltaMerge/SSTFilesToBlockInputStream.h> | ||
| #include <Storages/KVStore/Decode/PartitionStreams.h> | ||
| #include <Storages/KVStore/FFI/ProxyFFI.h> | ||
| #include <Storages/StorageDeltaMerge.h> | ||
| #include <common/logger_useful.h> | ||
|
|
||
| namespace DB | ||
| { | ||
| namespace DM | ||
| { | ||
| BoundedSSTFilesToBlockInputStream::BoundedSSTFilesToBlockInputStream( // | ||
| SSTFilesToBlockInputStreamPtr child, | ||
| const ColId pk_column_id_, | ||
| const DecodingStorageSchemaSnapshotConstPtr & schema_snap) | ||
| : pk_column_id(pk_column_id_) | ||
| , _raw_child(std::move(child)) | ||
| { | ||
| const bool is_common_handle = schema_snap->is_common_handle; | ||
| // Initlize `mvcc_compact_stream` | ||
| // First refine the boundary of blocks. Note that the rows decoded from SSTFiles are sorted by primary key asc, timestamp desc | ||
| // (https://github.com/tikv/tikv/blob/v5.0.1/components/txn_types/src/types.rs#L103-L108). | ||
| // While DMVersionFilter require rows sorted by primary key asc, timestamp asc, so we need an extra sort in PKSquashing. | ||
| auto stream = std::make_shared<PKSquashingBlockInputStream</*need_extra_sort=*/true>>( | ||
| _raw_child, | ||
| pk_column_id, | ||
| is_common_handle); | ||
| mvcc_compact_stream = std::make_unique<DMVersionFilterBlockInputStream<DM_VERSION_FILTER_MODE_COMPACT>>( | ||
| stream, | ||
| *(schema_snap->column_defines), | ||
| _raw_child->opts.gc_safepoint, | ||
| is_common_handle); | ||
| } | ||
|
|
||
| void BoundedSSTFilesToBlockInputStream::readPrefix() | ||
| { | ||
| mvcc_compact_stream->readPrefix(); | ||
| } | ||
|
|
||
| void BoundedSSTFilesToBlockInputStream::readSuffix() | ||
| { | ||
| mvcc_compact_stream->readSuffix(); | ||
| } | ||
|
|
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| Block BoundedSSTFilesToBlockInputStream::read() | ||
| { | ||
| return mvcc_compact_stream->read(); | ||
| } | ||
|
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| SSTFilesToBlockInputStream::ProcessKeys BoundedSSTFilesToBlockInputStream::getProcessKeys() const | ||
| { | ||
| return _raw_child->process_keys; | ||
| } | ||
|
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| RegionPtr BoundedSSTFilesToBlockInputStream::getRegion() const | ||
| { | ||
| return _raw_child->region; | ||
| } | ||
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| std::tuple<size_t, size_t, size_t, UInt64> // | ||
| BoundedSSTFilesToBlockInputStream::getMvccStatistics() const | ||
| { | ||
| return std::make_tuple( | ||
| mvcc_compact_stream->getEffectiveNumRows(), | ||
| mvcc_compact_stream->getNotCleanRows(), | ||
| mvcc_compact_stream->getDeletedRows(), | ||
| mvcc_compact_stream->getGCHintVersion()); | ||
| } | ||
|
|
||
| } // namespace DM | ||
| } // namespace DB |
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