clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Why lightweight deletion cannot be performed based on partition parts, but rather a full table scan?
- is it worth optimizing cache miss in joinRightColumns() in HashJoin.cpp ?
- clickhouse background merge cause memory_limit_exceeded error
- Allow table-specific query cache drop
- Cloning replica to use async zookeeper calls
- DB::Exception: Tried to pull logs to queue (reason: MERGE_PREDICATE) on readonly replica test_3.rmt1, it's a bug. (LOGICAL_ERROR)
- Cannot extract table structure from Parquet format file when sepcifying compression without `output_format_parquet_compression_method`
- Can't build with sanitizers on Linux aarch64
- INCONSISTENT_CLUSTER_DEFINITION when using cluster-discovery
- Background threads of S3Queue don't flush their ProfileEvents
- Docs
- C++ not yet supported