MariaDB 10.4.1 发布，流行的 MySQL 分支版本

  

MariaDB 10.4.1 已发布，更新内容如下：

Syntax

• New FLUSH SSL command to reload SSL certificates without server restart (MDEV-16266)

• New CAST target — CAST(x AS INTERVAL DAY_SECOND(N)) (MDEV-17776)

Variables

• New sql-mode setting, TIME_ROUND_FRACTIONAL (MDEV-16991)

• Two new values for the variable use_stat_tables: COMPLEMENTARY_FOR_QUERIES and PREFERABLY_FOR_QUERIES(MDEV-17255)

• Engine Independent Table Statistics is now enabled by default; new default values are use_stat_tables=PREFERABLY_FOR_QUERIES and optimizer_use_condition_selectivity=4 (MDEV-15253)

• New variable gtid_cleanup_batch_size for determining how many old rows must accumulate in the mysql.gtid_slave_pos table before a background job will be run to delete them.

Other Features

• Support for window UDF functions via the new method x_remove (MDEV-15073)

• Json service for plugins (MDEV-5313)

• Much faster privilege checks for MariaDB setups with many user accounts or many database grants (MDEV-15649)

• mysql.user table is retired. User accounts and global privileges are now stored in the mysql.global_priv table (MDEV-17658)

• Change in behavior for FLUSH TABLES (MDEV-5336).

Bug Fixes

Lots of miscellaneous fixes, including:

• Bug fixes for MDEV-15562 instant DROP COLUMN

MariaDB 主要由开源社区在维护，采用 GPL 授权许可。MariaDB 的目的是完全兼容 MySQL，包括 API 和命令行。

下载地址：

• https://mariadb.com/downloads