[FLASH-548/579] Engine DeltaMerge coprocessor integration#287
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JaySon-Huang merged 6 commits intopingcap:DeltaMergeEngine-rebasedfrom Oct 23, 2019
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flowbehappy
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Oct 23, 2019
| doLearnerRead(tidb_table_info.id, mvcc_query_info.regions_query_info, tmt, log); | ||
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| /// For learner read from TiDB/TiSpark, we set num_streams by `mvcc_query_info.concurrent` | ||
| num_streams = std::max(1U, static_cast<UInt32>(mvcc_query_info.concurrent)); |
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Looks like queries from ch client will also run this path. Maybe we should check the availability ofmvcc_query_info to determine whether it is a learner read from TiDB/TiSpark.
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mvcc_query_info is never null, but mvcc_query_info.regions_query_info is empty if it is not come from TiDB/TiSpark.
Done.
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LGTM |
flowbehappy
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Oct 23, 2019
JaySon-Huang
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Oct 23, 2019
* Throw exception with region status; Use reverseGetColumnInfo * Use IManageableStorage instead of StorageMergeTree * Fix args of mock_tidb_table && ensure engine is DeltaMerge * For learner read from TiDB/TiSpark, we set num_streams by mvcc_query_info.concurrent * fix compile error * address comment; add log for level trace
JaySon-Huang
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Oct 30, 2019
* Throw exception with region status; Use reverseGetColumnInfo * Use IManageableStorage instead of StorageMergeTree * Fix args of mock_tidb_table && ensure engine is DeltaMerge * For learner read from TiDB/TiSpark, we set num_streams by mvcc_query_info.concurrent * fix compile error * address comment; add log for level trace
JaySon-Huang
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* Throw exception with region status; Use reverseGetColumnInfo * Use IManageableStorage instead of StorageMergeTree * Fix args of mock_tidb_table && ensure engine is DeltaMerge * For learner read from TiDB/TiSpark, we set num_streams by mvcc_query_info.concurrent * fix compile error * address comment; add log for level trace
JaySon-Huang
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* Throw exception with region status; Use reverseGetColumnInfo * Use IManageableStorage instead of StorageMergeTree * Fix args of mock_tidb_table && ensure engine is DeltaMerge * For learner read from TiDB/TiSpark, we set num_streams by mvcc_query_info.concurrent * fix compile error * address comment; add log for level trace
JaySon-Huang
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* Throw exception with region status; Use reverseGetColumnInfo * Use IManageableStorage instead of StorageMergeTree * Fix args of mock_tidb_table && ensure engine is DeltaMerge * For learner read from TiDB/TiSpark, we set num_streams by mvcc_query_info.concurrent * fix compile error * address comment; add log for level trace
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Sep 23, 2024
… the remote checkpoint (pingcap#287) Signed-off-by: Calvin Neo <calvinneo1995@gmail.com> Co-authored-by: JaySon <tshent@qq.com>
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Make coprocessor can read tables with DeltaMerge engine.
There is too many errors after rebase branch DeltaMergeEngine to master without these commits, I create a temporary branch (
DeltaMergeEngine-rebased) and create a PR for review.After reviewed, I will force push this DeltaMergeEngine-rebased to DeltaMergeEngine