Overview

MariaDB Enterprise ColumnStore 23.10.7 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.7 was released on 13 November 2025. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.7 is a GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.23-19 and MariaDB Enterprise Server 11.4.8-5.

Overview

MariaDB ColumnStore 23.10.5 is a maintenance release of MariaDB ColumnStore.

MariaDB ColumnStore 23.10.5 was released on 6 August 2025. This release is of General Availability (GA) maturity. MariaDB ColumnStore 23.10.5 is a GA release in the 23.10 series.

This release of MariaDB ColumnStore is included with MariaDB Community Server 12.0.2, 11.8.3, and 11.4.8.

Overview

MariaDB Enterprise ColumnStore 23.10.6 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.6 was released on 8 September 2025. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.6 is a GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.23-19 and MariaDB Enterprise Server 11.4.8-5.

Overview

MariaDB Enterprise ColumnStore 23.10.2 is a feature release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.2 was released on 2024-08-19. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.2 is a GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.18-14.

Notable Changes

• Save EM image locally if S3 fails PUT request or avoid saving if shared memory image is damaged or empty ()

• No data gets loaded into BLOB column and the value is left NULL ()

• Using regexp_substr on table with engine=columnstore results in error:"Function 'regexp_substr' isn't supported." ()

Issues Fixed

• ORDER BY clause if not included in the GROUP BY clause fails ()

• Group By ... Order By NULL fails ()

• Alter table add column leaves table unusable ()

• select * into file from (select ... group by) produces spurious error ()

Can result in a hang or crash

• CMAPI: ConnectionRefusedError unhandled exception ()

• Truncate table failed after PrimProc restarted ()

• mcs-savebrm stores an empty EM on cluster shutdown rendering the cluster unusable ()

• NULL & non-zero length string, assertion 'mStr || mLength == 0' failed ()

Can result in unexpected behavior

• Disk join step race with parallel join (more than one thread) ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.10.2 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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

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

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

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

Overview

23.02.14 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine that is included with the .

MariaDB Enterprise ColumnStore 23.02.14 was released on 7 May 2025. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.14 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Cluster Management API (CMAPI) 22.08.2 is a maintenance release of CMAPI. CMAPI is a REST API for administering in multi-node topologies.

Cluster Management API 22.08.2 was released on 2022-11-15. This release is of General Availability (GA) maturity.

CMAPI 22.08.2 is compatible with MariaDB Enterprise ColumnStore 22.08. CMAPI 22.08.2 was first released with

Users of CMAPI 22.08.1 are encouraged to upgrade.

Issues Fixed

Overview

6.4.8 is a maintenance release of . MariaDB ColumnStore is a columnar storage engine included with MariaDB Enterprise Server and MariaDB Community Server 10.6, 10.11, and 11.0. This is a release in the ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.8 was released on 2024-02-07. This release is of General Availability (GA) maturity.

This release of MariaDB ColumnStore is included with MariaDB Community Server 10.11.7 and MariaDB Community Server 10.6.17

Overview

6.4.6 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the seventh release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.6 was released on 2022-09-30. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.8-4.

Overview

6.4.4 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the sixth release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.4 was released on 2022-08-09. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.8-4.

Overview

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

MariaDB Enterprise ColumnStore 5.6.8 was released on 2022-12-21. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included starting with MariaDB Enterprise Server 10.5.18-13.

Overview

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

MariaDB Enterprise ColumnStore 5.6.7 was released on 2022-09-12. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.17-12.

Role in MariaDB Enterprise Platform 2026

MariaDB ColumnStore, the columnar storage engine optimized for Online Analytical Processing (OLAP) workloads, enhances MariaDB Platform 2026 with advanced hybrid transactional-analytical processing (HTAP) capabilities. Its massively parallel processing (MPP) architecture enables real-time analytics directly on live InnoDB transactional data, eliminating the need for separate data pipelines or delayed imports. Tightly integrated with MariaDB Enterprise Server, ColumnStore supports parallel execution of complex analytical queries alongside transactional workloads, delivering instant insights from dynamic datasets. With enhanced scalability, streamlined cluster management, and robust data handling, ColumnStore in the 2026 Platform is the ideal solution for enterprises seeking seamless, high-performance analytics and transactional processing in modern data-driven applications.

Major improvements relative to previous release series include:

• Scalability & Performance

  • Horizontal scaling option via read-only nodes

  • New bulk loading import flags and improvements

• Operations & Usability

Features

Notable Items

• On failover, metadata could become corrupted when looking for a file that's not supposed to exist called BRM_savesB_journal.

• cpimport maximum batch size -q raised to 8,000,000

• Disk-based distinct []

Can result in hang or crash

• Post upgrade to 23.10.4, some of the queries giving different set of results upon executing multiple times []

• Extremely large primloc logs generated after upgrade from 23.10.3 to 23.10.4 []

• Deactivate_only logic is always enabled on node removal in CMAPI []

• Selinux rules needed to enable columnstore for rhel 10 []

Related to performance

• Added ORDER BY and LIMIT/OFFSET processing for UNION queries. Handle UNION pushdown edge case that triggers slow table mode processing []

• Read-replica Columnstore nodes v1 []

Overview

MariaDB Enterprise ColumnStore 23.10.1 is a feature release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.1 was released on 2024-03-11. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.1 is a GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.17-12.

The changes listed here are relative to MariaDB Enterprise ColumnStore 23.02.4.

Notable Changes

• Cross db table rename fails ()

• Columnstore throws error when using GROUP BY on DB-Views where field name is identical in two different tables ()

• GROUP BY on duplicate expressions using functions throws error "IDB-2001: ... is not in GROUP BY clause." on Columnstore ()

• Support WITH ROLLUP ()

Issues Fixed

Can result in data loss

• Shmem segment remap causes SEGV in ExtentMapIndexImpl::find ()

Can result in a hang or crash

• Queries stuck in MariaDB waiting for an answer from PrimProc ()

• LIKE '%1%' in WHERE part never finishes ()

• PrimProc goes in a loop, 100% CPU usage on a single core ()

• PrimProc crashes in json_key_matches ()

Can result in unexpected behavior

• UPDATE returns wrong "Rows matched" on multi-tables ()

• json data returns differently by same query ()

• Columnstore query returns incorrect value instead of expected out-of-range error ()

• JSON_QUERY is stateful (may segfault on big amount of data) ()

Related to performance

• CPU wastes time in wait and sys because of urandom access in RowStorage ()

Related to install and upgrade

• Wrong metadata in CMAPI packages ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.10.1 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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.15 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine that is included with the MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.15 was released on 3 Jul 2025. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.15 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9 and 10.6.15-10.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Notable Changes

• Backport to 23.02 and release 23.02 using ES 10.6.15-10.

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.02.14 is provided for:

• Debian 11 (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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 22.08.4 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 22.08.4 was released on 2022-11-15. This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 22.08 replaces MariaDB Enterprise ColumnStore 6 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.9-5.

Users of earlier MariaDB Enterprise ColumnStore 22.08 releases are encouraged to upgrade.

Issues Fixed

Can result in a hang or crash

• With MariaDB Replication and ColumnStore, queries on a replica will hang. ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 22.08.4 is provided for:

• CentOS 7 (x86_64)

• Debian 11 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64, ARM64)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 22.08.3 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 22.08.3 was released on 2022-11-05. This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 22.08 replaces MariaDB Enterprise ColumnStore 6 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.9-5.

Users of MariaDB Enterprise ColumnStore 22.08.1 or 22.08.2 are encouraged to upgrade.

Issues Fixed

Can result in a hang or crash

• With multi-node deployments, queries can hang on one node. ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 22.08.3 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64, ARM64)

• Debian 11 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Cluster Management API (CMAPI) 22.08.1 is a maintenance release of CMAPI. CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

Cluster Management API 22.08.1 was released on 2022-09-12. This release is of General Availability (GA) maturity.

CMAPI 22.08.1 is compatible with MariaDB Enterprise ColumnStore 22.08. CMAPI 22.08.1 was first released with MariaDB Enterprise ColumnStore 22.08.1.

Notable Changes

• CMAPI configures ColumnStore to allow read queries to be executed on any node. ()

  • In previous releases, CMAPI only added an ExeMgr section for the primary node to Columnstore.xml.

  • Starting with this release, CMAPI adds an ExeMgr section for every node to Columnstore.xml, which means that any node can execute read queries.

• Since Enterprise ColumnStore 22.08 merges the ExeMgr process into the PrimProc process, CMAPI no longer tries to start ExeMgr on a node when the binary is not present. ()

• Some redundant log messages have been removed from the CMAPI log. ()

Platforms

In alignment to the MariaDB Corporation Engineering Policy, CMAPI 22.08.1 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64, ARM64)

• Debian 11 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

Installation Instructions

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}

Cluster Management API (CMAPI) 1.6.3 is a maintenance release of CMAPI. CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

Cluster Management API 1.6.3 was released on 2022-04-20. This release is of General Availability (GA) maturity.

CMAPI 1.6.3 is compatible with MariaDB Enterprise ColumnStore 5.6 and 6. CMAPI 1.6.3 was first released with MariaDB Enterprise ColumnStore 5.6.5 and MariaDB Enterprise ColumnStore 6.2.3.

Notable Changes

• When a node is added to the cluster using a DNS name, the node's DNS name is added to Columnstore.xml instead of the node's IP address. ()

  • Prior to this release, when a node's IP address changed after it was added to the cluster, Columnstore.xml still contained the node's old IP address.

  • Starting with this release, CMAPI can adapt to changing IP addresses when the DNS name in Columnstore.xml resolves to the new IP address.

Issues Fixed

After the primary server is killed and restarted, MaxScale and CMAPI could each choose different primary servers. ()

Platforms

In alignment to the MariaDB Corporation Engineering Policy, CMAPI 1.6.3 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64)

Installation Instructions

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}

Cluster Management API (CMAPI) 1.6.2 is a maintenance release of CMAPI. CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

Cluster Management API 1.6.2 was released on 2022-02-23. This release is of General Availability (GA) maturity.

CMAPI 1.6.2 is compatible with MariaDB Enterprise ColumnStore 5.6 and 6. CMAPI 1.6.2 was first released with MariaDB Enterprise ColumnStore 5.6.5 and MariaDB Enterprise ColumnStore 6.2.3.

Notable Changes

• Compatibility added for MariaDB ColumnStore 6.2.3. ()

• Compatibility added for Enterprise ColumnStore 6.2.3 cross engine join encrypted passwords. ()

• Added support for using a custom port for cross engine join support. ()

Issues Fixed

• During upgrade CMAPI configuration information is lost. Customer data is not impacted. ()

• mcsStatus incorrectly returns "cluster_mode": null. This is a cosmetic issue that does not affect operation. ()

Platforms

In alignment to the MariaDB Corporation Engineering Policy, CMAPI 1.6.2 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64)

Installation Instructions

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}

Overview

MariaDB Enterprise ColumnStore 6.4.2 is a maintenance release of MariaDB Enterprise ColumnStore . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the sixth release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.2 was released on 2022-07-19. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.8-4.

Issues Fixed

Can result in unexpected behavior

• When disk-based aggregations are enabled, aggregations can fail with the ER_INTERNAL_ERROR error code. ()

  • The following error message could be raised to the client:

This change was a speculative bug fix. Please use Enterprise ColumnStore 6.4.4 or later for the complete bug fix.

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 6.4.2 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64)

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}

Overview

MariaDB Enterprise ColumnStore 6.2.3 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the third release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.2.3 was released on 2022-02-23. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.5-2 and MariaDB Enterprise Server 10.6.7-3.

Notable Changes

• CMAPI 1.6.2 was originally included

• CMAPI 1.6.3 is now included

  • CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

  • For additional information, see "Release Notes for CMAPI 1.6.2" and "Release Notes for CMAPI 1.6.3".

Issues Fixed

Can result in unexpected behavior

• UPDATE with cross engine IN subquery produced unexpected results. ()

• Error can arise with cross engine JOIN: Internal error: CrossEngineStep::execute() caught getSignedNullValue(): got bad column width (4) ()

• IN operation doesn't respect COLLATE ()

• Slower than expected bulk insertion. ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 6.2.3 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64)

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}

Overview

MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise ColumnStore. This is the sixth release in the Enterprise ColumnStore 5 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.10-7.

This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 5.6.2 was released on 2021-06-30.

Issues Fixed

• Possible segfault with disk-based aggregation. (, )

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 5.6.2 is provided for:

• CentOS 7

• CentOS 8

• Debian 9

• Debian 10

Installation Instructions

Upgrade Instructions

• Major Release Upgrades for MariaDB Enterprise ColumnStore.

Overview

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

MariaDB Enterprise ColumnStore 23.02.9 was released on 2024-08-19. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.9 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Overview

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

MariaDB Enterprise ColumnStore 23.02.8 was released on 2024-02-16. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.8 is the fourth GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Overview

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

MariaDB Enterprise ColumnStore 23.02.2 was released on 2023-04-14. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.2 is the second GA release in the 23.02 series.

MariaDB Enterprise ColumnStore 23.02 replaces MariaDB Enterprise ColumnStore 22.08 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.12-7.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Overview

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

MariaDB Enterprise ColumnStore 22.08.2 was released on 2022-10-04. This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 22.08 replaces MariaDB Enterprise ColumnStore 6 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.9-5.

This release has been withdrawn. Users of MariaDB Enterprise ColumnStore 22.08.2 should upgrade to MariaDB Enterprise ColumnStore 22.08.3.

Cluster Management API (CMAPI) 6.4.1 is a maintenance release of CMAPI. CMAPI is a REST API for administering in multi-node topologies.

Cluster Management API 6.4.1 was released on 2022-07-12. This release is of General Availability (GA) maturity.

CMAPI 6.4.1 is compatible with MariaDB Enterprise ColumnStore 6. CMAPI 6.4.1 was first released with

Notable Changes

Cluster Management API (CMAPI) 1.6.0 is a maintenance release of . CMAPI is a REST API for administering in multi-node topologies.

Cluster Management API 1.6.0 was released on 2021-12-13. This release is of General Availability (GA) maturity.

CMAPI 1.6.0 is compatible with MariaDB Enterprise ColumnStore 5.6 and 6. CMAPI 1.6.0 was first released with and

Notable Changes

Overview

6.4.1 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the fifth release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.1 was released on 2022-07-12. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.8-4.

Overview

6.3.1 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the fourth release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.3.1 was released on 2022-04-25. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.7-3.

Overview

5.6.5 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the eighth release in the Enterprise ColumnStore 5 series.

MariaDB Enterprise ColumnStore 5.6.5 was released on 2022-02-14. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.13-9 and MariaDB Enterprise Server 10.5.15-10.

Overview

5.6.3 is a maintenance release of . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the seventh release in the Enterprise ColumnStore 5 series.

MariaDB Enterprise ColumnStore 5.6.3 was released on 2021-12-13. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.13-9.

Overview

MariaDB Enterprise ColumnStore 23.10.3 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.3 was released on 2025-01-27. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.3 is a GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.20-16.

Notable Changes

• NOT LIKE is not compatible with MariaDB on explicit NULL ()

• LEFT(str, negativeInt) returns a wrong result ()

• Having not() provokes an ERROR 2013 ()

• MariaDB Columnstore produces wrong averages on extracted null-datetime fields (like year) ()

Issues Fixed

Can result in hang or crash

• Reading a Columnstore table via a view using "count" crashes when the view has "order by" in definition ()

• CMAPI self-signed cert are expired after one year.. which leads to "Connection refused" messages ()

• Columnstore crashes/unstable on too large selects ()

• OOM occurs during disk based aggregation with um_mem_limit > 0 ()

Related to performance

• ByteStreamProcessor is slow with UM JOIN ()

• Remove boost::iequals from the code because it takes a global lock getting a locale ()

Platforms

In alignment with the , MariaDB Enterprise 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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.10.0 is a feature release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.10.0 was released on 2023-10-11. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.10.0 is the first GA release in the 23.10 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.15-10.

The changes listed here are relative to MariaDB Enterprise ColumnStore 23.02.4.

Notable Changes

• Improved compatibility with InnoDB behavior when performing a WHERE clause with NULL comparison. ()

• The default character set and collation have changed.

  • In previous releases, latin1 is the default character set. latin1 uses 1 byte per character.

  • Starting with this release, utf8 (utf8mb3) is the default character set. utf8mb3 uses 3 bytes per character.

Some commands have one or multiple optional arguments, to see optional argument values, use the --help argument after any command, for example:

• Collation information is available to the cpimport utility through the system catalog. ()

• cpimport is character set aware. ()

• Improved Disk Join step to handle corner cases for large data. ()

• The columnstore.cnf has been cleaned up and updated. Unused code has been deleted. Certain server settings related to ColumnStore performance that may differ than the server's own defaults have been added, for example, character_set_server and collation_server. (

Issues Fixed

Can result in unexpected behavior

• After a DML failure, the table lock remains. ()

• After using ALTER TABLE to add a new AUTOINCREMENT column or to change a column to AUTOINCREMENT, callastinsertid() shows incorrect autoincrement value. ()

• Trailing spaces behave differently in ColumnStore than in InnoDB causing unexpected results. ()

• With a query containing a 3 table JOIN, the wrong result can be returned. ()

Interface Changes

• columnstore_diskjoin_force_run system variable added

• columnstore_diskjoin_max_partition_tree_depth system variable added

• columnstore_max_allowed_in_values system variable added

• columnstore_max_pm_join_result_count system variable added

Default Values Changed

• character_set_client changed from latin1 to utf8mb3

• character_set_connection changed from latin1 to utf8mb3

• character_set_database changed from latin1 to utf8mb3

• character_set_results changed from latin1 to utf8mb3

If an existing table schema contains column types whose byte width now exceed the maximum byte width for that column type, dropping and creating the table with the new version without specifying CHARSET=latin1, will fail. Users should specify CHARSET=latin1 in CREATE TABLE statements.

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.10.0 is provided for:

• CentOS 7 (x86_64)

• Debian 11 (x86_64, ARM64)

• Debian 12 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.13 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine that is included with the MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.13 was released on 26 Mar 2025. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.13 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Notable Changes

• Improved memory management across JOIN, DISTINCT and ORDER BY operations to prevent out-of-memory events and related crashes ()

• Introduced the mcs-load-brm-from-file utility to assist in manually resolving certain upgrade issues ()

Issues Fixed

• Multiplication between a GROUP BY key and an averaged value can error out ()

• Control flow could fail resulting in hung queries ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.02.13 is provided for:

• Debian 11 (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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.12 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine that is included with the MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.12 was released on 2025-03-13. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.12 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Issues Fixed

Related to performance

• Remove boost::iequals from the code b/c it takes a global lock getting a locale ()

Can result in unexpected behaviour

• RGData ui32 counters limits us with addressing big data ()

Related to install and upgrade

• Upgrade 23.02.10 -> 23.10.2 Failing @ Customer ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.02.12 is provided for:

• Debian 11 (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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.10 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine that is included with the MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.10 was released on 2024-08-20. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.10 is a GA release in the 23.02 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.14-9.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Notable Changes

• Remove boost::iequals from the code because it takes a global lock getting a locale ()

• SM doesn't quit endless loop when S3 service returns non-retryable error ()

Platforms

In alignment with the MariaDB Enterprise ColumnStore 23.02.10 is provided for:

• Debian 11 (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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.3 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.3 was released on 2023-05-03. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.3 is the third GA release in the 23.02 series.

MariaDB Enterprise ColumnStore 23.02 replaces MariaDB Enterprise ColumnStore 22.08 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.12-7.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Issues Fixed

Can result in a hang or crash

• When the GROUP_CONCAT() function is used to produce relatively long strings, excessive memory can be used, which can cause PrimProc to crash with a segmentation fault. (, )

  • In previous releases, this issue can cause various types of messages to appear in the ColumnStore logs prior to the crash, such as:

In previous releases, this issue can cause clients to see the following error message:

Starting with this release, less memory should be used in this scenario.

• When multiple ColumnStore threads or processes try to access a managed shared memory segment for the Extent Map concurrently, a read/write conflict can cause the processes to crash with a segmentation fault due to a race condition. ()

  • In previous releases, cpimport, PrimProc, and DMLProc were observed to crash in this scenario.

  • Starting with this release, the internal RWLock is upgraded to a write lock when a shared memory segment remap is initiated (such as by a long running cpimport job), thus avoiding this read/write conflict.

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.02.3 is provided for:

• Debian 11 (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)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 23.02.1 is a feature release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 23.02.1 was released on 2023-03-13. This release is of General Availability (GA) maturity. MariaDB Enterprise ColumnStore 23.02.1 is the first GA release in the 23.02 series.

MariaDB Enterprise ColumnStore 23.02 replaces MariaDB Enterprise ColumnStore 22.08 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.12-7.

Users of earlier MariaDB Enterprise ColumnStore releases are encouraged to upgrade.

Notable Changes

• Support added for loading data from AWS S3 via a UDF columnstore_info.load_from_s3 which allows data loading with cpimport for those with no access to the command line. ()

• Allow pushdown of queries involving UNION in outer SELECT to ColumnStore engine. ()

• MariaDB Enterprise ColumnStore 23.02.1 is confirmed to be compatible with TPC-H benchmark tests.

• Starting with this release, GROUP BY handler is disabled by default. GROUP BY pushdown may produce unexpected results. In prior releases, GROUP BY handler was rarely used because it was last in precedence. (

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 23.02.1 is provided for:

• CentOS 7 (x86_64)

• Debian 11 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64, ARM64)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 22.08.7 is a maintenance release of MariaDB Enterprise ColumnStore. MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server.

MariaDB Enterprise ColumnStore 22.08.7 was released on 2022-12-21. This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 22.08 replaces MariaDB Enterprise ColumnStore 6 in MariaDB Enterprise Server 10.6.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.11-6.

Users of earlier MariaDB Enterprise ColumnStore 22.08 releases are encouraged to upgrade.

Issues Fixed

Can result in a hang or crash

• When the ExeMgr facility in the PrimProc process is restarted, if the SELECT component of an UPDATE statement fails, the DMLProc process performs a ROLLBACK operation, which can hang if the ExeMgr facility is not yet available. ()

  • Starting with this release, if this scenario occurs, DMLProc avoids the hang by retrying the operation after a timeout period.

• When ExeMgr is writing to the network, the process can sporadically crash due to a race condition. ()

Can result in unexpected behavior

• When the primary node is restarted, CMAPI and MaxScale sometimes choose different nodes to be the primary node. (, )

  • In previous releases, after the primary node was restarted, CMAPI would continue using the old primary server, but MaxScale would failover to a new primary server. If a user tried to select data from the new primary node, the operation could fail with the following error until the node is restarted:

Additionally, the new primary node could write messages like the following to ColumnStore's debug.log file:

Starting with this release, after the primary node is restarted, both CMAPI and MaxScale should failover to the same primary server.

• When a CTE contains a query that joins an table and a table, if the CTE results contain a , the column can sometimes be returned as a zero-date (which is 0000-00-00 00:00:00). ()

• When a is NULL and is cast to INT, the conversion would fail, and PrimProc would excessively write log messages to its systemd journal. ()

  • In previous releases, the systemd journal for PrimProc could contain many messages like the following:

Starting with this release, PrimProc no longer writes those log messages to its systemd journal.

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 22.08.7 is provided for:

• CentOS 7 (x86_64)

• Debian 11 (x86_64, ARM64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64, ARM64)

Installation Instructions

Upgrade Instructions

• Upgrade Multi-Node MariaDB Enterprise ColumnStore from 6 to 23.10

Overview

MariaDB Enterprise ColumnStore 6.2.2 is a maintenance release of MariaDB Enterprise ColumnStore . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the second release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.2.2 was released on 2021-12-13. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.5-2.

Notable Changes

• CMAPI 1.6 is now included

  • CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

  • For additional information, see "Release Notes for CMAPI 1.6".

• Performance improvements for query execution (, )

Issues Fixed

Can result in a hang or crash

• When columnstore_select_handler=ON is configured, the server can crash if a SELECT statement uses aggregate functions. ()

Can result in unexpected behavior

• The ColumnStore storage engine sometimes attempts to connect to the ExeMgr process on the old primary ColumnStore node after failover. ()

• cpimport writes output to standard error (stderr) when no error occurs. ()

• SELECT and UPDATE statements fail when the statement uses the CONVERT_TZ() function. () The following error message would be raised to the client:

• SELECT statements sometimes fail when the statement uses the RAND() function (, )

  • The following error message would be raised to the client:<<code>> ERROR 1815 (HY000): Internal error: IDB-2045: At least one PrimProc closed the connection unexpectedly. <.

• SELECT statements could return wrong results on large tables if the WHERE condition contains varchar_col < char_col ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 6.2.2 is provided for:

• CentOS 7 (x86_64)

• Debian 9 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

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Overview

MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the third release in the Enterprise ColumnStore 5 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.8-5.

This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 5.5.1 was released on 2020-12-14.

• Documentation

Notable Changes

• ColumnStore VARCHAR was sized in bytes, which required customers with multi-byte data to account for the byte variance within their capacity calculations and column definitions. VARCHAR is now sized by characters (which may be multi-byte) in alignment to the behavior of InnoDB and as required by SQL standard (ISO/IEC 9075:2016 feature E021 - Character string types). ()

• Non-equality comparison operators previously produced storage engine-specific results with NOPAD collations. This behavior now aligns to the behavior of InnoDB. ()

• Added ENCODE() and DECODE() function support. ()

Issues Fixed

Can result in a hang or crash

• Possible crash in mariadbd when calling stored procedures in the columnstore_info database. ()

• INSERT .. SELECT hangs on cpimport when MariaDB Enterprise ColumnStore is installed in a non-default path. ()

Can result in unexpected behavior

• Incorrect error message shown when using unsupported JSON functions. ()

• Equality does not respect the NOPAD collation attribute. ()

• ROUND() function returns incorrect answer for DATE data type. (, )

• calgetshowpartitions fails if MariaDB Enterprise Server started before MariaDB Enterprise ColumnStore. ()

Related to install and upgrade

• mcs-loadbrm and mcs-savebrm have hard coded paths to load_brm and save_brm ()

• In-place upgrade from 1.5 to 5.5 failed due to DEB package conflicts. ()

• A configuration file x-columnstore.cnf previously existed during Beta and Gamma releases of ColumnStore. This file has been removed as it is no longer required. ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 5.5.1 is provided for:

• CentOS 8

• CentOS 7

• Debian 10

• Debian 9

Installation Instructions

Upgrade Instructions

Overview

MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the second release in the Enterprise ColumnStore 5 series.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.5.6-4.

This release is of General Availability (GA) maturity.

MariaDB Enterprise ColumnStore 5.4.3 was released on 2020-11-09.

• Documentation

Issues Fixed

• statements crashing the Server. ()

• statements not working when selecting from to ColumnStore tables. ()

• statements crashing when is set to ON or ALWAYS ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 5.4.3 is provided for:

• CentOS 8

• CentOS 7

• Debian 10

• Debian 9

Installation Instructions

Upgrade Instructions

Overview

MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the first release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.1.1 was released on 2021-08-26. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.4-1.

Release date: 29th May 2018

is a maintenance GA release of MariaDB ColumnStore. This release of MariaDB ColumnStore provides improvements over the previous 1.0.13 GA release.

MariaDB ColumnStore 1.0.14 is a release.

For an overview of see

Please provide feedback in for anything that is not working as expected so that we can fix it before we make the release available for the larger community. For general "how to questions" ask questions or subscribe to mariadb-columnstore@googlegroups.com