clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Insert into Hudi table SEGV
- executeQueryWithParallelReplicas: std::exception. Code: 1001, type: std::out_of_range, e.what() = unordered_map::at: key not found
- total_rows_approx in system.processes returning 0 when LIMIT specified on query
- Add a tool to simulate, visualize and compare merge selectors
- Schema inference: take nullability information from Parquet/ORC/Arrow metadata by default
- DROP DATABASE throws UNKNOWN_TABLE exception
- SQLite query with wrong result
- StorageKafka2 could not continue reading from one partition after a ZK session loss
- Remove optimize_rewrite_array_exists_to_has
- Kafka engine does not work with non-Confluent Avro topics
- Docs
- C++ not yet supported