Release notes for MariaDB ColumnStore 1.2
Release date: 17th October 2018
MariaDB ColumnStore 1.2.0 is an Alpha release of MariaDB ColumnStore. This is the first release of the MariaDB ColumnStore 1.2 series. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
MariaDB ColumnStore 1.2.0 is a Alpha release.
Do not use alpha releases on production systems!
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-392 - TIME data type is now supported
MCOL-320 - TIME and DATETIME data types now support microseconds
MCOL-497 - Cross Engine Joins now support SSL connections
Improved DDL syntax support
MCOL-497 - BOOL / BOOLEAN alias for TINYINT now supported - with thanks to community contributor "tntnatbry"
MCOL-573 - Backticks & reserved words now supported
MCOL-716 - Non-alphanumeric table/column names now supported
MCOL-1201 - User Defined Aggregate / Window Functions now support multiple parameters.
MCOL-521 - Regression aggregate and windows functions are now supported.
MCOL-1577 - CREATE TABLE...LIKE now supported
MCOL-1242 - A remote bulk data import tool is now available which allows loading data directly from any server. This tool is included in the MariaDB ColumnStore Tools package
MCOL-1281 - Microsoft Windows 10 support for bulk write SDK
Pentaho data adapter is now also available for Windows 10
MCOL-1322 - data corruption when setting NUMERIC columns to NULL through the python and C++ API
MCOL-1523 - OAM Process failover logic for DDLproc is incorrect - causing DDL to stop working
MCOL-1606 - PDI 8 - variable substitution doesn't work
MCOL-1648 - pymcsapi3 on Windows depends on the Python 3 release DLL it was compiled with
MCOL-1658 - support space names in columnstore table column names
MCOL-1701 - Change Windows mcsapi build to use libraries from external directory
MCOL-1644 - PDI plugin CI tests - add check with PDI 8
MCOL-1704 - javamcsapi - compatibility test fails if executed multiple times
MCOL-1761 - Test script for Win is searching for wrong named zip file
MCOL-1766 - Increase Gradle dependency resolution timeout to 5min
MCOL-1695 - Add OS information to Kettle zip file
MCOL-1713 - Add Windows suffix to kettle data adapter
MCOL-345 - Saturated time() func handling is different to MariaDB
MCOL-346 - Saturated addtime() func handling is different to MariaDB
MCOL-573 - CS does not support reserved words as column names
MCOL-807 - HOUR() function returns NULL when it should not
MCOL-876 - Renaming a table in non-current database fails
MCOL-1002 - cpimport with down system say InfiniDB
MCOL-1219 - Column name can not start with numeric value
MCOL-1322 - data corruption when setting NUMERIC columns to NULL through the python and C++ API
MCOL-1327 - CS objects' identifiers doesn't support U+0000..U+007f even when quoted
MCOL-1377 - ColumnStore system logging not working after 1.1.4 ubuntu-16 install
MCOL-1379 - Scala connector won't compile in Ubuntu 18.04
MCOL-1386 - Create table statement doesn't allow usage of C style comments in it
MCOL-1520 - Forked server crashes in Item_ident::print() for a Temptable_field.
MCOL-1684 - Performance Schema crashes prepared statement
MCOL-1701 - Change Windows mcsapi build to use libraries from external directory
MCOL-1766 - Increase Gradle dependency resolution timeout to 5min
MCOL-266 - BOOLEAN data type not supported
MCOL-320 - support query of milli and micro second time parts
MCOL-392 - TIME datatype is not supported
MCOL-497 - support ssl connection in cross engine joins
MCOL-521 - add distributed regression aggregate and window functions
MCOL-548 - clean up engine repo cmake warnings
MCOL-569 - CS does not support reserved words as table names
MCOL-716 - support non alphanumeric characters for table and column names
MCOL-978 - Disable Query Cache for ColumnStore
MCOL-1052 - Implement GROUP BY pushdown support
MCOL-1073 - DecomSvr should be removed
MCOL-1201 - Allow UDAnF to have multiple parameters defined.
MCOL-1242 - Remote CpImport
MCOL-1244 - make postConfigure default install non-distributed
MCOL-1281 - mcsapi Windows support
MCOL-1378 - Hardening Flags pt 2
MCOL-1385 - Merge MariaDB 10.3
MCOL-1392 - Add time field support for PDI plugin
MCOL-1424 - Make the default installation option to separate instead of combined.
MCOL-1577 - ColumnStore to allow CREATE TABLE table_name LIKE ... Syntax
MCOL-1633 - mcsapi Windows - add needed Windows Redistributables to installer
MCOL-1688 - Informatica PowerCenter Bulk Write Connector
MCOL-1759 - Implement regr_sxx, regr_syy, regr_sxy and corr functions as UDAF
MCOL-1773 - Add mcsimport to PATH
MCOL-1547 - Investigate renewed in 10.3 CASE implementation.
MCOL-1634 - Include Windows library build into mcsapi
MCOL-1417 - TIME: cpimort saturates reserved NULL and empty indicator values incorrectly
MCOL-1418 - TIME: LDI saturates out-of-range values incorrectly
MCOL-1419 - TIME: Update saturates out-of-range values incorrectly
MCOL-1427 - Microsecond values are stored left-justified with trailing 0 padding
MCOL-1428 - SUBTIME() as a WHERE condition on TIME data type caused primProc to hang
MCOL-1429 - DAYNAME() and MONTHNAME() on TIME data type columns caused primProc to restart
MCOL-1433 - Some functions return non-matching results after data type TIME was added to the functions test suite
MCOL-1496 - Joiner array boundary bug
In addition, all bugs fixed in MariaDB ColumnStore 1.1.6 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.1.6 ColumnStore install to 1.2.0:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1782 - UPDATE and DELETE reported incorrect affected row count
MCOL-1792 - mcsapi can incorrectly insert milliseconds
MCOL-1799 - length() on BLOB data generates an error
MCOL-1786 - cpimport cannot handle "true" keyword for boolean/numeric data types in cpimport
MCOL-1805 - mcimport can show a warning about column sizes during import
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.0 Alpha version.
The supported OS for the Alpha version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.0". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
This page is: Copyright © 2025 MariaDB. All rights reserved.
Release date: 14th November 2018
MariaDB ColumnStore 1.2.1 is an Beta release of MariaDB ColumnStore. This is the first release of the MariaDB ColumnStore 1.2 series. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
MariaDB ColumnStore 1.2.1 is a Beta release.
Do not use beta releases on production systems!
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-520 - Non-root install now does not require sudo for the installation tools
MCOL-1846 - Amazon AMI support for Instances with ENA drivers
MCOL-1307 - Adapter can't recognize database schema written with backtick
MCOL-1554 - PDI CS not work in the Pentaho Sever repository
MCOL-1782 - UPDATE and DELETE reported incorrect affected row count
MCOL-1786 - Handle "true" keyword for numeric data types in cpimport - with thanks to community contributor "tntnatbry"
MCOL-1792 - Timestamp --> Datetime insert: milliseconds are wrongly inserted in CS
MCOL-1799 - test013 regression
MCOL-1811 - Rename mcsimport package name during Windows build
MCOL-1812 - Bulk Write SDK Windows installer uninstallation / alter - wrong execute credentials
MCOL-1813 - Bulk Write SDK's Windows installer doesn't detect Python installations for the current user only
MCOL-1821 - mcsimport not included in tools binary package
MCOL-1823 - Amazon AMI quick installer script - add in default to do distributed install
MCOL-1826 - PrimProc crash in float/double to string conversion
MCOL-1845 - RPM package summary need to be consistent
MCOL-1852 - Spark Exporter uses collect() instead of toLocalIterator() on DataFrames to export and therefore uses too much memory on the Driver
MCOL-1858 - An invalid records indication when loading the table unsing mcsimport
MCOL-520 - true non root install phase 1
MCOL-1158 - Support additional Python3 features using Swig's -py3 flag
MCOL-1642 - Add SQL command that shows Primary Front-End MariaDB ColumnStore Module
MCOL-1671 - Windows mcsapi - add option to install libraries directly into Java
MCOL-1774 - mcsimport - enclose by character support and escape character for enclose by char
MCOL-1816 - mcsapi - support bool data type
MCOL-1817 - Pentaho support bool data type
MCOL-1373 - Add TIME & DATETIME+msec support to mcsapi
MCOL-1593 - Add Windows builder to buildbot for API
MCOL-1744 - Remove unnecessary CentOS 7 mcsapi package dependencies
MCOL-1754 - Change libmysql dependency for Windows api tests to libmariadb
MCOL-1804 - Rebase 1.2 on MariaDB 10.3.10
MCOL-1846 - AMI support for Instances with ENA drivers
MCOL-1860 - cannot insert symbols in column using the mcsimport with escape_character option
MCOL-1654 - Querystats table is broken
In addition, all bugs fixed in MariaDB ColumnStore 1.2.0 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.2.0 ColumnStore install to 1.2.1:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1805 - mcimport can show a warning about column sizes during import
MCOL-1793 - regr_slope() and regr_r2() produce incorrect result when used as window functions
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.0 Alpha version.
The supported OS for the Alpha version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.0". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
This page is: Copyright © 2025 MariaDB. All rights reserved.
Release date: 3rd December 2018
MariaDB ColumnStore 1.2.2 is a GA release of MariaDB ColumnStore. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-1847 - NumBlocksPct and TotalUmMemory can take fixed memory sizes instead of percentages
MCOL-1739 - mcsapi has been split into separate packages for every programming language
MCOL-1890 - The kafka package has been renamed
MCOL-1519 - Query doesn't process certain JOIN types with GROUP BY handler.
MCOL-1558 - BRM_saves_current should use a relative path
MCOL-1638 - Suse12 regression failure test023 median::nextValue crashing PrimProc
MCOL-1716 - GROUP BY handler incorrectly process filters with subquery as IN predicate
MCOL-1718 - Clarify configuration requirements for usage of the -z option
MCOL-1742 - CentOS 7 - data-adapter repository installation broken
MCOL-1777 - regr tests depend on table that doesn't exist yet
MCOL-1778 - WF regression tests need fixing
MCOL-1779 - tablemode test failing in develop
MCOL-1793 - regr_slope() and regr_r2() produce incorrect result when used as window functions
MCOL-1800 - test022 regression
MCOL-1847 - need to be able to specify NumBlocksPct and TotalUmMemory explicitly
MCOL-1855 - ColumnStore table whose name contains $ cannot be renamed
MCOL-1868 - func_concat_ws type
MCOL-1875 - getsystemcpu & related commands always return 0 cpu usage
MCOL-1877 - getactivesqlstatements returns 'file open error'
MCOL-1879 - csv text "true" is mapped to 0 during import but should be parsed to 1
MCOL-1885 - Cross engine / Query stats doesn't show specific query errors
MCOL-1900 - PDI Plugin unresponsive if CS is not available
MCOL-1945 - mxs_adapter throws malloc error
MCOL-1947 - Our aliases break BASH
MCOL-1949 - vTpch10.sql and vTpch21.sql regression
MCOL-1953 - columnstoreClusterTester.sh script fails
MCOL-1959 - mxs_adapter assertion crash on multi table stream
MCOL-1094 - mcsapi should have view/clear table lock features
MCOL-1362 - Add a export function that utilizes (sequential) write from Spark workers
MCOL-1739 - Split mcsapi installation into different packages for C++, Java and Python
MCOL-1740 - mcsimport - depend on mcsapi only
MCOL-1844 - Allow prior/custom changes made to myCnf-include-args.text be added to new myCnf-include-args.text after upgrading
MCOL-1790 - Implement new CASE item type detection
MCOL-1866 - Change logo in mcsapi, PDI and mcsimport
MCOL-1944 - /var/log/mariadb/columnstore ownership set to 777 recursive
MCOL-1952 - Rebase develop 10.3.11
In addition, all bugs fixed in MariaDB ColumnStore 1.2.1 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.1.6 ColumnStore install to 1.2.2:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1662 - INSERT...SELECT and LOAD DATA INFILE when used in a transaction as well as mcsapi can cause dictionary columns to be badly cached
MCOL-1797 - resumeDatabaseWrites can cause DML/DDL to go active all on UMs simultaneously
MCOL-1990 - localquery mode tries to turn on replication and fails.
MCOL-2061 - Running TRUNCATE on a table that has been upgraded from 1.1 -> 1.2 can cause MariaDB server to crash. As a workaround you can DROP and recreate the table.
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.2 GA version.
The supported OS for the GA version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.2". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
This page is: Copyright © 2025 MariaDB. All rights reserved.
Release date: 21st March 2019
MariaDB ColumnStore 1.2.3 is a GA release of MariaDB ColumnStore. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-2176 - Jemalloc is a new dependency for MariaDB ColumnStore.
MCOL-1822 - The maximum possible value for AVG() and SUM() has significantly increased due to the usage of long double.
MCOL-901 - group_concat() consumes a great amount of memory
MCOL-1456 - Query doesn't try REDO_PHASE1
MCOL-1559 - Regression on working_tpch1/misc/bug3669 string pad compare not correct
MCOL-1607 - postConfigure must support hostnames as cluster nodes network endpoints.
MCOL-1662 - WriteEngine bulk methods do not version dictionaries correctly
MCOL-1702 - Joblist thread pool leaks if mariadb client connection drops its connection early.
MCOL-1726 - mcsapi stale transactions
MCOL-1741 - Debian 9 - data-adapter package dependencies broken
MCOL-1755 - Informatica: delete statement doesn't escape reserved names for column names
MCOL-1795 - Remote Cpimport / API: Text overlaps MariaDB logo in installer windows
MCOL-1797 - resumedatabasewrites causes both DDL/DML to go active on um1/um2
MCOL-1829 - Output of 'select * (with order by limit) queries' returns unexpected result
MCOL-1883 - RENAME crashes when tablename contains / symbol
MCOL-1890 - Deb package name change broken
MCOL-1945 - mxs_adapter throws malloc error
MCOL-1980 - javamcsapi's shared library gets generated with the version number appended twice
MCOL-1981 - regr_avgx and regr_avgy should return NULL if count is zero
MCOL-1983 - regr_intercept, regr_r2, regr_slope and possibly other regr functions should return NULL with only one row.
MCOL-1995 - javamcsapi - MillionRow test fails on Ubuntu 16.04 and 18.04
MCOL-2009 - Fix jobstep abort
MCOL-2018 - Dictionary null comparison check can crash
MCOL-2050 - ORDER BY with OFFSET in subquery produces random and incorrect result
MCOL-2052 - IS.columnstore_files maximum contains incorrect number of records for any relation.
MCOL-2062 - cpimport scientific notation conversion problem
MCOL-2070 - pentaho kettle adapter lock session with bulk columnstore and dml transaction(delete/update operation).
MCOL-2071 - PDI CS Bulk Load plugin not able to read transformations with empty configuration
MCOL-2165 - Autoswitch broken in some cases in 1.2.2
MCOL-2180 - UDAF docs are currently broken
MCOL-2182 - PrimProc crash - signal 11, Segmentation fault - funcexp::Func_lpad::getStrVal
MCOL-1688 - Informatica PowerCenter Bulk Write Connector
MCOL-1814 - Add Windows builder to buildbot for Kettle
MCOL-1815 - Add Windows builder to buildbot for mcsimport
MCOL-1822 - Change the default to use double when overflow occurs in SUM() and AVG()
MCOL-1897 - Add API test suite to buildbot
MCOL-1898 - Add data-adapters test suite to buildbot
MCOL-1899 - Add tools test suite to buildbot
MCOL-1961 - javamcsapi, pymcsapi known isTableLock and TableLockInfo limitations
MCOL-2082 - Write Spark and PySpark documentation for mcsapi
MCOL-2110 - Cant build engine out-of-source
MCOL-2120 - Check NUMA devel package is installed on BuildBot instances
MCOL-2176 - Use jemalloc as the main memory allocator - testing for 1.2.3-1
MCOL-2218 - Rebase 1.2 on MariaDB 10.3.13
In addition, all bugs fixed in MariaDB ColumnStore 1.2.2 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.1.7 ColumnStore install to 1.2.3:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1990 - localquery mode tries to turn on replication and fails.
MCOL-2061 - Running TRUNCATE on a table that has been upgraded from 1.1 -> 1.2 can cause MariaDB server to crash. As a workaround you can DROP and recreate the table.
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.3 GA version.
The supported OS for the GA version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.3". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
This page is: Copyright © 2025 MariaDB. All rights reserved.
Release date: 29th May 2019
This version has been removed from production due to MCOL-3395 having the potential to corrupt databases.
MariaDB ColumnStore 1.2.4 is a GA release of MariaDB ColumnStore. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-3270 - cpimport performance for dictionary data is up to 2x faster.
MCOL-2061 - If you are performing a major version upgrade or have in the past there is a new stored procedure called columnstore_info.columnstore_upgrade() should be executed.
MCOL-537 - Some compiler warnings need fixing
MCOL-1495 - Memory leak in WriteEngineServ
MCOL-1951 - Crash when MySQL aggregate UDF is called against Columnstore table
MCOL-1984 - SystemConfig / WaitPeriod change lost during upgrade
MCOL-2001 - mscadmin redistributeData parameters are not accepted as suggested by the help information.
MCOL-2035 - Some regr_* tests aren't deterministic so comparisons are iffy. RANK()
MCOL-2061 - MariaDB shows warnings and could crash on DDL after upgrade
MCOL-2089 - High CPU usage and slow performance appears when load data with remote mcsimport
MCOL-2091 - UDAF doesn't work if there are two count(distinct) in projection list
MCOL-2244 - There is no way to identify execution thread that causes bottleneck
MCOL-2267 - Query with SUM() erroring - /rowgroup.h@677: assertion '0' failed
MCOL-2273 - getSystemDisk showing incorrect root usage and reporting incorrect alarm
MCOL-3249 - Probably Kafka DA produces '\0' in the end of TEXT or VARCHAR with width > 7
MCOL-3268 - javamcsapi compatibility test fails
MCOL-3293 - UPDATE performance improvement contribution - Contributed by ABS Global
MCOL-3296 - ctrl+c sometimes leaves DMLProc in bad state
MCOL-3307 - Non-Columnstore Window function causes debug assert
MCOL-3311 - regression test212 logs integer expression expected error
MCOL-3318 - RPM warnings appear when installing ColumnStore's MariaDB Server
MCOL-593 - support columnstore tables as slaves to innodb master tables
MCOL-1254 - Add hidden switch for MariaDB async replication
MCOL-2013 - API .NET support - Alpha - Contributed by Bill Adams
MCOL-2076 - Allow simple replication to ColumnStore
MCOL-2129 - Add a new postConfigure flag to resolve submitted hostnames to correct reverse dns names
MCOL-3267 - Support ORDER BY within UNION subqueries
MCOL-3270 - Improve cpimport ingest speed into Dictionary columns - Contributed by ABS Global
MCOL-2068 - add support for using and defaulting memory based settings to docker image
MCOL-3315 - Rebase on MariaDB 10.3.15
Additional typo fix contribution by Kabike
In addition, all bugs fixed in MariaDB ColumnStore 1.2.3 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.1.7 ColumnStore install to 1.2.4:
The following procedure outlines upgrading a 1.2.x ColumnStore install to 1.2.4:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1990 - localquery mode tries to turn on replication and fails.
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.4 GA version.
The supported OS for the GA version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.4". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
This page is: Copyright © 2025 MariaDB. All rights reserved.
Release date: 23rd July 2019
MariaDB ColumnStore 1.2.5 is a GA release of MariaDB ColumnStore. The MariaDB ColumnStore 1.2 series provides several new features and improvements over the MariaDB ColumnStore 1.1 release.
For an overview of MariaDB ColumnStore see MariaDB ColumnStore Architectural Overview
Please provide feedback in JIRA 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 here or subscribe to mariadb-columnstore@googlegroups.com
MCOL-3395 - Critical regression in the dictionary storage of 1.2.4 fixed.
MCOL-1375 - Assertion failure when using HAVING with constant values
MCOL-1985 - Fix up regr functions in regrmysql.cpp so regr_* funtions work correcly for InnoDB tables
MCOL-2225 - cross engine join with space in column names in on condition cause fatal error
MCOL-2230 - DATE/TIME type math is broken -- TIMEDIFF, TIMESTAMPDIFF and date math
MCOL-3239 - CS incorrectly pushes function filter predicate into a subquery.
MCOL-3304 - Window functions in queries with embedded selects produce bad numbers
MCOL-3314 - Exemgr crash on query happening when we increase 2 variables, MaxOutStandingRequests and RequestSize
MCOL-3353 - Possible memory corruption in execplan
MCOL-3367 - ColumnStore API rpm packages failed to install
MCOL-3373 - Bug in funcexp while throwing an exception
MCOL-3384 - Crash in mxs_adapter
MCOL-3385 - Strings returned by the Avro C API include the null terminator in thestring length
MCOL-3391 - columnstore_upgrade failed from 1.2.2 to 1.2.4 when database including multibyte table name
MCOL-3395 - regression: dictionary de-duplication cache bleeding between columns
MCOL-3399 - Regression in LDI string length handling
MCOL-3404 - tpcds query #98 failed with an internal error
MCOL-3321 - some regr_* function tests need order by to make them deterministic
MCOL-3343 - Window Functions don't work with arithmetic operators or other functions
MCOL-1968 - wrong string comparisation after dataimport and extents
MCOL-1989 - Querying view results in internal error: column is not found in info map
MCOL-3398 - Rebase 1.2 on MariaDB 10.3.16
In addition, all bugs fixed in MariaDB ColumnStore 1.2.4 and earlier are implicitly included in this release.
The following procedure outlines upgrading a 1.1.7 ColumnStore install to 1.2.5:
The following procedure outlines upgrading a 1.2.x ColumnStore install to 1.2.5:
Multi version upgrades generally will work using the same procedure however we can't test every possible permutation so you should test your specific scenario outside of production first if you wish to try this (and this is good practice regardless).
There are a number bugs and known limitations within this version of MariaDB ColumnStore, the most serious of these are listed below.
MCOL-1990 - localquery mode tries to turn on replication and fails.
MariaDB ColumnStore Documentation
RPM, Debian, and binary packages are provided for the Linux distributions supported by MariaDB ColumnStore 1.2.5 GA version.
The supported OS for the GA version are CentOS 6, CentOS 7, Debian 8, Debian 9, RedHat 6, RedHat 7, SUSE 12, Ubuntu 16.04 and Ubuntu 18.04.
Packages can be downloaded here or can be installed from the repositories.
An Amazon AWS AMI Image is available for this release, please search for AMI name "MariaDB-ColumnStore-1.2.5". AMI specific installation instructions can be found here.
Certified to run in Google Cloud Environment in the GA OSs.
The source code of MariaDB ColumnStore is tagged at GitHub with a tag, which is identical with the version of MariaDB ColumnStore. For instance, the tag of version X.Y.Z of MariaDB ColumnStore is columnstore-X.Y.Z. Further, master always refers to the latest released non-beta version.
The source code is available at these locations
Storage Engine - Source code for engine specific processes on UM and PM node
Write Data API - Source code for Write Data API /SDK
MaxScale CDC and Kafka Data Adapters - Source Code for data adapters
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