clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Remote copy function fails to copy data from standalone server to another
- Replicated materialized view support
- Convert WKB to GeoJSON with ClickHouse?
- `clickhouse-start` depends on `sudo` utility
- Error message from `InterserverIOHTTPHandler` should contain information about database and table name.
- Merges can be assigned on parts which have no quorum satisfied
- short_circuit_function_evaluation also for constants
- short_circuit_function_evaluation also for coalesce
- cluster function breaks restriction of allow_databases for system tables
- ClickHouse while inserting getting error cannot allocate memory: While executing Remote. (CANNOT_ALLOCATE_MEMORY) It looks like that the process is near the limit on number of virtual memory mappings.
- Docs
- C++ not yet supported