Altinity Stable for ClickHouse 20.3.19.4
Details of the Altinity Stable Release 20.3.19.4
Description
The release includes several dozen bug fixes from the previous release.
Major New Features
- Server startup time has been reduced by parsing metadata in parallel.
- Improved performance of primary key analysis for LowCardinality columns. That was a performance regression introduced in 20.3.
- Improved performance of queries with large tuples and tuples used in primary key.
Bug Fixes
- Fixed a bug that prevented attaching Materialized Views to system tables.
- Fixed incorrect behavior of
if
function with NULLs. - Fixed segfaults in rare cases.
- Fixed a bug that prevented predicate pushdown for queries using
WITH
clause. - Fixed
SIGSEGV
in Kafka engine when broker is unavailable. - Fixed a bug leading to
block structure mismatch
error for queries withUNION
andJOIN
. - Fixed TTL processing logic to process all partitions in one run.
- Fixed a bug of parsing of row policies from configuration files that could result in missing policies sometimes.
- Fixed a bug with
ALTER TABLE UPDATE
could produce incorrect results when updating Nullable columns. - Fixed a bug with codecs not working properly for MergeTree compact parts.
References
Updated RPM packages for Altinity Stable Release can be found in the Altinity Stable Repository. The ClickHouse repository can be used for DEB packages but check version numbers carefully.
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Last modified 2022.07.15: Removed trademark.