MariaDB ColumnStore 23.10.4 Release Notes

Overview

MariaDB ColumnStore 23.10.4 is a maintenance release of MariaDB ColumnStore. MariaDB ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB ColumnStore 23.10.4 was released on 19 May 2025. This release is of General Availability (GA) maturity. MariaDB ColumnStore 23.10.4 is a GA release in the 23.10 series.

This release of MariaDB ColumnStore is included with MariaDB Enterprise Server 10.6.21-17.

Notable Changes

• New memory consumption accounting mechanism to prevent OOM events-related crashes. (MCOL-5797)

• FROM_UNIXTIME(negativeDecimal) not behaving as InnoDB (MCOL-4605)

• SEC_TO_TIME(wideDecimal) returns 0 in DECIMAL context (MCOL-4607)

• MOD loses precision on huge narrow decimal (MCOL-4611)

• Different results compared to innodb with union all and subselect with null in select and impossible where condition (MCOL-4942)

• cmapi support for log collection (MCOL-5300)

• JSON_ARRAYAGG in MCS works differently than in InnoDB. (MCOL-5394)

• CLI Startup - Single start command for Single Node (MCOL-5525)

• Alias "mcs CLUSTER" commands to just mcs (MCOL-5526)

• Cmapi (mcs cli) support for columnstore backups (MCOL-5618)

• Improve Client Error Messaging and async broadcasting config. (MCOL-5638)

• CTE/aggreation function give wrong results (MCOL-5842)

• DROP TABLE IF EXISTS should not generate errors for non existing tables (MCOL-5890)

• Disk based GROUP_CONCAT() (MCOL-5921)

• NULLIF function returns -32768 instead of NULL when querying a ColumnStore table (MCOL-5922)

• when a value of a column is empty text ('') the result of group_concat(json_object(...)) is null instead of the correct result set (MCOL-5986)

Issues Fixed

Can result in hang or crash

• Creating different keys with cskeys on all nodes can break cluster(key not distributed properly) (MCOL-5019)

• Bitwise aggregation functions do not work with wide decimals (internal error) (MCOL-5386)

• Loss of PrimProc can lead to infinite loop (MCOL-5396)

• GROUP_CONCAT in query uses enormous amount of RAM causing OOM to kill PrimProc (MCOL-5852)

• mariadbd crashing randomly when running "SELECT calShowPartitions(" (MCOL-5879)

• SubAdapterStep::execute() MCS-2035 Fix Requested (MCOL-5889)

• primproc oversubscribes memory (MCOL-5918)

• primproc 11/SEGV - querying a view (MCOL-5932)

• Fix rollbacks in mcs cli and passing errors during broadcasting config. (MCOL-5962)

Related to performance

• Subselect sorting is single-threaded always (MCOL-5316)

Platforms

In alignment with the enterprise lifecycle, MariaDB ColumnStore 23.10.3 is provided for:

• Debian 11 (x86_64, ARM64)

• Debian 12 (x86_64, ARM64)

• Red Hat Enterprise Linux 8 (x86_64, ARM64)

• Red Hat Enterprise Linux 9 (x86_64, ARM64)

• Rocky Linux 8 (x86_64, ARM64)

• Rocky Linux 9 (x86_64, ARM64)

• Ubuntu 20.04 (x86_64, ARM64)

• Ubuntu 22.04 (x86_64, ARM64)

• Ubuntu 24.04 (x86_64, ARM64)

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