clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add test: INSERT / TRUNCATE rejection on S3 archive syntax untested
- librdkafka fork missing `ERR__DESTROY` guard in `rd_kafka_handle_SaslAuthenticate` — spurious SASL errors on Kafka engine producer destroy
- PREWHERE and(LowCardinality(UInt8), UInt8, UInt8) silently returns 0 rows when IN is used on LowCardinality(String)
- Add test: Reserved-name check for ` SSH KEY AUTHENTICATION ` prefix in `User::setName` is untested
- Add test: PR's `input_rows_count == 0` early-return branch in `mortonEncode` dispatcher is untested
- Add test: `dateTrunc` 3-argument timezone form for `millisecond`/`microsecond`/`nanosecond` is untested; output `DataTypeDateTime64` scale (3/6/9) is also not asserted via `toTypeName`
- Backport #102689 to 25.8: Fix columns_substreams.txt corruption during column rename in some cases
- Backport #102689 to 26.2: Fix columns_substreams.txt corruption during column rename in some cases
- Backport #102689 to 26.3: Fix columns_substreams.txt corruption during column rename in some cases
- Backport #102689 to 26.4: Fix columns_substreams.txt corruption during column rename in some cases
- Docs
- C++ not yet supported