clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Normalize a unary sign before a number in normalizeQuery and normalizedQueryHash
- Fix wrong results of `pointInPolygon` for points next to an edge with a distant vertex
- Fix crash when a lambda or SQL UDF with an aggregate function is called with a GROUP BY key under `group_by_use_nulls`
- perf(promql): Prewarm the TimeSeries tags deduplication cache when the table starts
- Fix wrong results and `NOT_FOUND_COLUMN_IN_BLOCK` when a `GROUP BY` key comparison is an operand of an `OR` or `AND` chain
- Mask the connection string in ODBC/JDBC bridge request URLs
- Fix wrong results of `distinctJSONPaths` with window functions, JOINs and filters
- Fix reading a DataLakeCatalog table whose location is not a valid URL
- Fix aggregate projection not used with IS NULL under the analyzer
- Fix correlated EXISTS over an aggregate without GROUP BY returning 0 for outer rows without inner rows
- Docs
- C++ not yet supported