clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix LOGICAL_ERROR `Primary key type mismatch` in DirectKeyValueJoin via JOIN USING (STID 3436-4175)
- Add test: `local_blob_storage` + `metadata_type=plain` combination has no stateless coverage
- Add test: Negative-overflow half of `float64AsSecondsToTimespan` range check at `SettingsFields.cpp`:320 is untested
- Add test: `ALTER TABLE <materialized view> MODIFY SQL SECURITY INVOKER` runtime guard untested
- Add test: Trivial count with AND of partition column and non-deterministic function on partitioned `MergeTree` is untested
- Add test: `TO INNER UUID` rejected for refreshable MV without APPEND — new BAD_ARGUMENTS check untested
- Add test: `intDivOrZero` and reverse-order `(Date, Decimal)` paths of the new int_div type-guard untested
- Add test: `SummingMergeTree` merge with `enable_block_offset_column=1` — `_block_offset` not-to-aggregate path untested
- Add test: `getLeastSupertype` `Enum`+`FixedString`, `Enum16`+`String`, `if`, and UNION paths untested
- Cherry pick #103858 to 25.8: Fix data part check and consistency check for tables with JSON column
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- C++ not yet supported