clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Feat(Parser): Add static `PIVOT` support
- Collision check never renders JSON shared-data streams: corrupt part still accepted
- Fix(URL): Parse URL parameter names without values
- Fix(Conversion): toInt32OrDefault for Decimal overflow
- `Style check` commit status silently dropped from PR commits
- `min` over an `Array`/`Tuple`/`Map` with `Nullable` elements depends on block layout: a NULL-bearing value never wins inside one block but wins on the state-merge path
- Commit-order projection never selected: `_partition_id` fails the column check
- `_part_offset` returns projection part offset with `prefer_optimize_projection`
- Parameterized view shadows built-in table function in DESCRIBE and INSERT
- INSERT SELECT into Distributed rejects WITH-alias source args
- Docs
- C++ not yet supported