ClickHouse / ClickHouse/ClickHouse
Implement support for aggregation-by-partitions in parallel replicas
Open
comp-parallel-replicas
feature
performance
- Dominant language
- C++
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- Avg merge
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- Merged PRs (30d)
- 515
Description
continuation of #34950
we could append a filter condition like `partition_key = X_i` to a query to be send to replica `#i` and rely on key analysis to do all the dirty work. and avoid merging on the initiator.
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