clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Improve compatibility of cast(timestamp as string) with spark
- MySQL interface drops first row in transit when using extended protocol
- JSONStringsEachRowWithProgress output format always contain zero values in the result_rows, result_bytes, elapsed_ns fields
- Sort order of blocks violated for column logical error
- Clickhouse server fails to start due to syntax error in a valid view
- Default storage_policy for a whole database or group of users (settings profiles)
- Can't use same function twice for two materialized columns in the same table: MULTIPLE_EXPRESSIONS_FOR_ALIAS
- dictGetDescendants+arrayMap process only first row for root node of for HIERARCHICAL dictionary
- connection loss while table creation leave dangling files and further creation fails
- Error with toDate function
- Docs
- C++ not yet supported