clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- High memory use when listing DataLake/Glue tables (getAllTableNames/SHOW TABLES/system.tables)
- Unexpected behavior when evaluating equality predicates on map keys
- Recursive CTE selects datatype that is too narrow
- Add an optional chime sound to ClickHouse Client that plays when a query finishes over a runtime threshold
- Generic exclusion search is expensive with large ranges of matches or high cardinality keys
- Iceberg Rest Catalog table count() show wrong result
- New table engine IcebergxxxReadOnlyCluster
- Mutation leads to CANNOT_INSERT_NULL_IN_ORDINARY_COLUMN (regardless of validate_mutation_query value)
- Using Array columns with CoalescingMergeTree
- NOT_FOUND_COLUMN_IN_BLOCK exception for valid query with constant Columns and DISTINCT, ORDER BY, LIMIT BY
- Docs
- C++ not yet supported