Release Notes for MariaDB ColumnStore 1.5.2
MariaDB ColumnStore is a columnar storage engine for MariaDB Server.
This release of MariaDB ColumnStore is included with MariaDB Community Server 10.5.4.
MariaDB ColumnStore 1.5.2 was released on 2020-06-24. It is the first release in the MariaDB ColumnStore 1.5 series. It is a beta release.
Comprehensive rewrite of installation and administration logic. (MCOL-3836)
mcsadminhas been removed. Instead, ColumnStore 1.5 uses
mariadb-columnstoreis used to manage ColumnStore's processes.
See OAM Replacement for more details.
Support for standard MariaDB Community Server collation and character sets. (MCOL-337)
Improved performance for
Fixes for defects in tiered storage and S3-compatible object storage.
Support to set up
tempfiles.dto prevent the OS from flushing
/tmpon reboot. (MCOL-2101)
Support for faster replication-slave processing. (MCOL-3835)
Creates a systemd unit file for the MariaDB ColumnStore service. (MCOL-3914)
Implements REST API server. (MCOL-3921)
Merges 3 MariaDB ColumnStore packages into a single package. (MCOL-3991)
systemlangto an unrecognized string now causes MariaDB ColumnStore to not start up. (MCOL-3420)
COLLATEin DDL and
ORDER BYclauses. (MCOL-3862)
Improvements in failover design. (MCOL-3886)
loadbrm process rewritten in Python (
mcs-loadbrm.py). Now requires Python 3 as a dependency.
INnot evaluating properly in
Fixes DNS error
MessageQueueClient :: setup (): unknown name or service - ExeMgr = unassigned. (MCOL-2181)
Fixes truncation during updates causing the Server to assert. (MCOL-3749)
Fixes issue where the same erroneous statement returns a different error other run. (MCOL-3777)
GROUP BYordering error:
IDB-2021: 'ref_genome' is not in GROUP BY clause(MCOL-3782)
Fixes MariaDB asserts when connection is closed. (MCOL-3812)
Fixes incorrect counts in views. (MCOL-3813)
Fixes issue in
UNIONoperations about table not being in query. (MCOL-3828)
Fixes issue where
systemctl cat mariadb.serviceis not working on all systems. (MCOL-3830)
Fixes Server aborting when
Columnstore.xmlis missing. (MCOL-3853)
Fixes issue where renaming table causes schema to go out of sync. (MCOL-3859)
Fixes intermittent cpimport crashes. (MCOL-3865)
Fixes fails in
long double. (MCOL-3904)
Fixes error message pointing to wrong function. (MCOL-3924)
Fixes memory leak in XML parser. (MCOL-3934)
Fixes issue using
Fixes mishandling of multi-byte characters in DML export to cpimport-1.5. (MCOL-4017)
Fixes window function issues due to 1.4 returning results where 1.2 returns errors. (MCOL-3856)
Fixes cpimport S3 multi-PM usage. (MCOL-3861)
In alignment to the MariaDB Corporation Engineering Policy, MariaDB ColumnStore 1.5.2 is provided for:
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 7
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12
MariaDB ColumnStore 1.5 has been superseded by MariaDB ColumnStore 5.5 in MariaDB Enterprise Server 10.5. For installation and upgrade instructions, see Deploy MariaDB ColumnStore 5.4 with MariaDB Community Server 10.5.