clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Read Paimon primary-key tables where Paimon itself reads them without merging
- Surface version metadata ("introduced in", "deprecated in") on documentation pages
- Backport #127867 to 26.10: Fix `LOGICAL_ERROR` reading `SHARED` paths of dynamic types of a `JSON` column with the columns cache
- Add `JSONExtractLeafValues` and `JSONExtractLeafPathsAndValues` to read all leaf values of a JSON `String`
- Add `JSONExtractLeafValues` and `JSONExtractLeafPathsAndValues` functions
- Text-index LIKE with shared literal prefix 8-43x slower than 26.10
- Fix stale text index and uncompressed cache results after a part directory is reused
- SYSTEM DROP/PREWARM VECTOR SIMILARITY INDEX CACHE [FOR TABLE db.t] [INDEX idx]
- Improve usability of obsolete settings
- Cherry pick #128604 to 26.3: Don't do s3 requests to get metadata in delta tables
- Docs
- C++ not yet supported