clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Test build
- CSV parsing scales badly with input_format_csv_missing_nullable_as_empty_string
- Wrong result: an alias-keyed `additional_table_filters` entry is dropped for cluster table functions (`urlCluster`, `s3Cluster`)
- Glue/HMS DataLakeCatalog serves stale cached table after external drop+recreate
- Split long PromQL range queries by interval and cache completed chunks
- Fix a `JSONAllValues` text index skipping matching rows of `Dynamic` and `Variant` JSON paths
- Text index: intersect posting lists once per 65536 rows instead of once per granule in materialize mode
- Reject storage policies whose disks share the same storage namespace
- Fix alias-keyed `additional_table_filters` being ignored for `*Cluster` table functions
- Resolve relative command line paths in `clickhouse server --daemon`
- Docs
- C++ not yet supported