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 supported66 Subscribers
Add a CodeTriage badge to clickhouse
Help out
- Issues
- `additional_result_filter` over a `Tuple` column reorders the result columns, and `tup.a` throws `NOT_FOUND_COLUMN_IN_BLOCK`
- Projection `ORDER BY` tuple with alias is stored as unparseable definition
- Keep aliased tuples in projection `ORDER BY` formatting
- Analyzer-based mutations lose PREWHERE in IN (SELECT ... WHERE ...) set subqueries and build the set twice
- Wrong `count()` from the exact-count projection with a descending sorting key on a tuple with a `Nullable` element
- Upgrade bundled Cyrus SASL to 2.1.28
- Select partitions with an in-memory index of partition values
- Text index: multiSearchAny, match() and multiMatchAny skip the index for needles inside one token, and optimize_or_like_chain turns indexed LIKE/ILIKE chains into such calls; a dictionary scan makes their counts ~95% faster on large parts
- TimeSeries: the rows of a SELECT depend on the columns it reads, so count() over a subquery disagrees with the subquery
- Random test
- Docs
- C++ not yet supported