clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Support for `CREATE OR REPLACE MATERIALIZED VIEW`
- Add optimize_row_order_if_no_order_by (reopen #103919)
- Investigate partitioned-build, streamed-probe variant of ConcurrentHashJoin
- RESTORE leaves orphan empty table after mid-restore crash
- Text index: support arrayExists and arrayAll
- `Date` type values > 32767 days (after 2059-09-18) corrupted in ORC output due to `Int16` overflow
- Fix bucket-aware merging dropped by analyzer with ARRAY JOIN over remote source
- `isNullable` returns 0 for constant Dynamic/Variant but 1 for non-constant - inconsistent constant folding
- `accept-invalid-certificate` config check uses `has()` instead of `getBool()` — explicit 0 still accepts certificates
- Add `binary_fuse_filter` skip index type for MergeTree tables
- Docs
- C++ not yet supported