The most recent release of MariaDB 10.4 is:MariaDB 10.4.34 Stable (GA) Download Now
Download | Release Notes | Changelog | Overview of 10.4
Release date: 9 Nov 2018
MariaDB 10.4 is the current development series of MariaDB. It is an evolution of MariaDB 10.3 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.
MariaDB 10.4.0 is an Alpha release.
Do not use alpha releases in production!
For an overview of MariaDB 10.4 see theWhat is MariaDB 10.4? page.
Thanks, and enjoy MariaDB!
This will be the first alpha release in the series.
Notable changes of this release include:
Added instant and changing of the order of columns ()
Reduced redo log volume for undo tablespace initialization ()
Removed crash-upgrade support for pre-10.2.19 TRUNCATE TABLE ()
Added key rotation for ()
()
Added the system variable ()
Removed the global status variable ().
IF NOT EXISTS clause added to and IF EXISTS clause added to and ()
The obsolete is no longer created ()
Support of brackets (parentheses) for specifying precedence in // operations ()
For a complete list of changes made in , with links to detailed information on each push, see the .
For a full list of contributors to , see the .
Do not use alpha releases in production!
Crash safe Aria-based (MDEV-16421)
Added Linux abstract socket support (MDEV-15655)
Enabled C++11 (MDEV-16410)
support for and other (MDEV-12321)
Performance improvements in collations (MDEV-17534, MDEV-17511, MDEV-17502, MDEV-17474)
User data type plugins (MDEV-4912, in progress)
Improvements with SQL standard INTERVAL support to help functions and return more predictable results.
Historically, MariaDB uses the TIME data type for both "time of the day" values and "duration" values. In the first meaning the natural value range is from '00:00:00' to '23:59:59.999999', in the second meaning the range is from '-838:59:59.999999' to '+838:59:59.999999'.
To remove this ambiguity and for the SQL standard conformance we plan to introduce a dedicated data type INTERVAL that will be able to store values in the range at least from '-87649415:59:59.999999' to '+87649415:59:59.999999', which will be enough to represent the time difference between TIMESTAMP'0001-01-01 00:00:00' and TIMESTAMP'9999-12-31 23:59:59.999999'.
As a first step we support this range of values for intermediate calculations when TIME-alike string and numeric values are used in INTERVAL (i.e. duration) context, e.g. as the second argument of SQL functions TIMESTAMP(ts,interval) and ADDTIME(ts,interval), so the following can now be calculated:
SELECT ADDTIME(TIMESTAMP'0001-01-01 00:00:00', '87649415:59:59.999999');
-> '9999-12-31 23:59:59.999999'
SELECT TIMESTAMP(DATE'0001-01-01', '87649415:59:59.999999')
-> '9999-12-31 23:59:59.999999'
SELECT ADDTIME(TIME'-838:59:59.999999', '1677:59:59.999998');
-> '838:59:59.999999'This page is licensed: CC BY-SA / Gnu FDL