clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Delay creating column readers with use_skip_indexes_on_data_read=1
- Fix Bad cast crash for qualified asterisk over a JOIN USING key
- Fix data race on FileCacheQueryLimit::query_map causing LOGICAL_ERROR
- Fix two crashes in Parquet V3 reader prewhere (shared intermediate and no-filter)
- Fix text index direct read losing NULL semantics for Nullable columns
- Fix constant filter conjunct pushed to non-preserved side of OUTER JOIN
- Fix LOGICAL_ERROR in decorrelated correlated subquery join with duplicate columns
- Do not terminate the server on retryable errors while loading outdated parts
- Run heavy delta modules sequentially in the integration flaky check
- Fix Logical error 'removed' in DatabaseCatalog drop queue (shared UUID across CREATE OR REPLACE)
- Docs
- C++ not yet supported