clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `s3()` fails to read parquet files from zip archive in S3 when zip entry is not compressed
- AddressSanitizer: heap-use-after-free (STID: 0988-3351)
- Iceberg: prune manifest files at the manifest-list level using the partitions summary
- `ILIKE` multi column selection
- Vectorize the hash table probe path (SIMD metadata scan + batched probe loop)
- Fix streaming `INSERT` flush for `HTTP` input
- Support for `CREATE OR REPLACE MATERIALIZED VIEW`
- Avoid pure-virtual abort during MergeTree destruction race (STID 3631-4165)
- Add optimize_row_order_if_no_order_by (reopen #103919)
- Investigate partitioned-build, streamed-probe variant of ConcurrentHashJoin
- Docs
- C++ not yet supported