MariaDB 10.2.12发布，MySQL分支版本

MariaDB 10.2.12 发布了。MySQL 数据库管理系统是 MariaDB 的一个分支，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。

Notable Changes

• MDEV-12837 - WSREP: BF lock wait long

• MDEV-14799 - After UPDATE of indexed columns, old values will not be purged from secondary indexes

• MDEV-12827 - Assertion failure when reporting duplicate key error in online table rebuild

• MDEV-14008 - Failure reading auto-increment values in DOUBLE column from storage engine

• MDEV-12323 - Rollback progress log messages during crash recovery are intermixed with unrelated log messages

• MDEV-12352 - InnoDB shutdown should not be blocked by a large transaction rollback

• MDEV-13797 - InnoDB may hang if shutdown is initiated soon after startup while rolling back recovered incomplete transactions

• MDEV-14422 - Assertion failure in trx_purge_run() on shutdown

• MDEV-14589 - InnoDB should not lock a delete-marked record

• MDEV-14714 / MDEV-14488 / MDEV-14644 - data corruption caused by error log messages ending up in database files or binary logs

• MDEV-14511 - Use fewer transactions for updating InnoDB persistent statistics

• MDEV-13670 / MDEV-14550 - Error log flood :  "InnoDB: page_cleaner: 1000ms intended loop took N ms. The settings might not be optimal."

• mariabackup: MDEV-14536 - during backup, retry read of log blocks, if there is (possibly intermittent) checksum mismatch

• As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.2 for Ubuntu 17.04 "Zesty".

Updates

• The reserved word WINDOWis now only disallowed for table aliases.