clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Disable `enable_producing_buckets_out_of_order_in_aggregation` by default
- Reuse _distance for a PREWHERE that filters on the sorted-by distance
- Do not let an unreadable job result JSON kill the praktika runner before it reports
- Add cardinality estimation for `startsWith`, `endsWith` String predicates
- Fix rows never deleted by a TTL DELETE WHERE that only matches after a merge combines them
- EmbeddedRocksDB table loses all data after RENAME to another database and a restart
- Reject a named collection override value that has no textual representation
- Fix logical error 'Bad cast to ColumnVariant' in set operations
- Fix QCC write by topK query with split AND-chain filters
- Do not construct remote-I/O fibers on AArch64 with MemorySanitizer
- Docs
- C++ not yet supported