clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- ppc64le: bundled libunwind unw_getcontext leaves callee-saved vector registers byte-swapped (fixed in LLVM main, not backported)
- Build the DISTINCT in order hashing state once per block, not once per run
- Fix wrong values of a direct JOIN with MergeTree for Tuple columns with sparse elements
- Upgrade check: do not check the row policies on tables created as a table function
- Check the memory limit while reading aggregate function states
- Docs: add clickhousectl sections to Cloud, Managed Postgres, ClickStack and ClickPipes pages
- Fix wrong results of a tuple comparison with a constant `Dynamic` element
- Allow to revoke source grant with filter, without revoking other filters
- A server crash during `CREATE TABLE ... AS SELECT` or `CREATE OR REPLACE` leaves the internal `_tmp_replace_<hash>_<random>` table in the database permanently
- Fix slow inserts and merges on encrypted object storage disks: part files were uploaded one at a time
- Docs
- C++ not yet supported