clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
Triage Issues!
When you volunteer to triage issues, you'll receive an email each day with a link to an open issue that needs help in this project. You'll also receive instructions on how to triage issues.
Triage Docs!
Receive a documented method or class from your favorite GitHub repos in your inbox every day. If you're really pro, receive undocumented methods or classes and supercharge your commit history.
C++ not yet supported67 Subscribers
Add a CodeTriage badge to clickhouse
Help out
- Issues
- least/greatest return wrong results when an argument is LowCardinality (resolver picks the generic implementation against a sign-aware declared result type)
- Overload resolvers misclassify LowCardinality arguments: intDiv/modulo throw ILLEGAL_DIVISION on NULL denominators, fromModifiedJulianDay rejects valid integers, constant-argument checks reject LowCardinality constants
- Quoting list omits `NOT`/`TOP`/`CUBE`/`ROLLUP`: identifier re-parsed as an operator
- Clamp applied to a copy: nested `use_query_cache` still escapes `readonly`/`CONST`
- Decimal arithmetic silently truncates an integer operand that does not fit the decimal's native width, wrong results at default decimal_check_overflow = 1
- IN over a lower-scale `DateTime64`/`Time64` column silently truncates the set element since 26.4: `dt IN (x)` is true where `dt = x` is false, and pre-epoch values truncate onto the next second
- `Buffer` and `MaterializedView` over a `Distributed` destination return wrong `ORDER BY` results when their declared type differs: the header conversion is applied above the delegated processing stage
- `optimize_arithmetic_operations_in_aggregate_functions` returns `min` greater than `max` for a `Decimal` argument — the min/max swap decision uses the untruncated constant
- arrayJoin in a projection SELECT is accepted at DDL then bricks all inserts with a LOGICAL_ERROR (sibling of #117014, #117022)
- arrayJoin in a Distributed sharding key is accepted then throws LOGICAL_ERROR or silently misroutes rows (sibling of #117014, #117022)
- Docs
- C++ not yet supported