Release Notes for MariaDB Enterprise ColumnStore 6.4.1
MariaDB Enterprise ColumnStore 6.4.1 is a maintenance release of MariaDB Enterprise ColumnStore. 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.
The Extent Map is now stored as a red-black tree instead of a linear array.
The Extent Map's new data structure provides optimizations for many operations.
ColumnStore now includes Cluster Management API (CMAPI) 6.4.1.
Can result in a hang or crash
The race conditions could cause the Extent Map to become corrupt.
The race conditions could also cause the
DMLProcprocess to repeatedly try to rollback the same transactions in a crash loop.
When a recursive CTE is executed with a ColumnStore table, the server crashes. (MCOL-4778)
Starting with this release, when a recursive CTE is executed with a ColumnStore table, the
ER_CHECK_NOT_IMPLEMENTEDerror code is raised to the client with the following message:
ERROR 1178 (42000): The storage engine for the table doesn't support Recursive CTE
Can Result in unexpected behavior
Related to install and upgrade
Internal installation scripts refer to legacy OAM components and can break some installations. (MCOL-5060)
In alignment to the enterprise lifecycle, MariaDB Enterprise ColumnStore 6.4.1 is provided for:
CentOS 7 (x86_
Debian 10 (x86_
Red Hat Enterprise Linux 7 (x86_
Red Hat Enterprise Linux 8 (x86_
Rocky Linux 8 (x86_
Ubuntu 18.04 (x86_
Ubuntu 20.04 (x86_
MariaDB Enterprise ColumnStore 6 has been superseded by MariaDB Enterprise ColumnStore 22.08 in MariaDB Enterprise Server 10.6.