clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- ALTER TABLE DROP/DETACH PARTITION silently fails for Bool partition keys due to Field type mismatch in getPartitionIDFromQuery
- Add test: No test for bloom filter text index on mapKeys with non-map comparison functions
- Missing size check in parseLiteralAndAssertType causes OOB crash when tuple element counts differ between rows
- getKeyValueMongoDBArgument rejects oid_columns named argument with BAD_ARGUMENTS
- FilterTransformPassedBytes counts pre-filter column sizes at line 247
- insertResultInto finalizes buffer without persisting accumulated sizes, breaking incremental window functions
- getCreateDatabaseQueryImpl skips empty comment overlay, causing cleared comments to persist in metadata file
- Add test: No test for MV validation with MATERIALIZED columns in target table after getSampleBlockInsertable switch
- extractMonotonicFunctionsChainFromKey passes result_type instead of arg_type to isFunctionReallyMonotonic, bypassing Date→DateTime overflow check
- recoverBatch() uses files.back() instead of loop variable 'file', causing all batch files to be marked as broken when a middle file is corrupted
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- C++ not yet supported