clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Preserve `now64(3)` defaults in `s3Cluster` forwarded reads
- Fix missing rows in `EmbeddedRocksDB`, `KeeperMap` and `Redis` key lookups for a `FixedString`, `Variant` or `Dynamic` constant
- Do not correct the global memory tracker on every tick in sanitizer builds
- Fix the TopK query condition cache key collision of `c UInt8` and `cU Int8`, and build the File TopK key with SipHash
- Do not claim `toString` injective for `Bool`
- `null_as_default` in existing-variant pass turns `[null]` into `[[]]` or `[{}]`
- Existing Tuple variant truncates or pads arrays of a different length
- JSON Dynamic strings get silently parsed into existing Date/DateTime variants
- system.stack_trace query stops at first thread_id block with no match
- Reading valid Arrow structs with bad field names pollutes system.errors
- Docs
- C++ not yet supported