内容简介：Percona Server for MySQL 5.7.20-18 已发布。 Percona Server for MySQL 5.7.20-18 基于 MySQL 5.7.20，包含其中所有的错误修复。Percona Server for MySQL 5.7.20-18 是 Percona Server for MySQL 5.7 系列中的...
Percona Server for MySQL 5.7.20-18 已发布。
Percona Server for MySQL 5.7.20-18 基于 MySQL 5.7.20，包含其中所有的错误修复。Percona Server for MySQL 5.7.20-18 是 Percona Server for MySQL 5.7 系列中的最新版本。更新如下：
新特性
Percona Server packages are now available for Ubuntu 17.10 (Artful).
As part of InnoDB Full-Text Search improvements, a new
innodb_ft_ignore_stopwordsvariable has been implemented which controls whether InnoDB Full-Text Search should ignore stopword list when building/updating an FTS index. This feature is also fixing bug #1679135 (upstream #84420).Percona Server has implemented InnoDB Page Fragmentation Counters.
Percona Server has implemented support for Multiple page asynchronous I/O requests. This feature was ported from a Facebook MySQL patch.
Percona Server has implemented TokuDB integration with
PERFORMANCE_SCHEMA.
Bug 修复
Percona Server 5.7 Docker images did not include TokuDB. Bugs fixed #1682419 and #1699241.
If an I/O syscall returned an error during the server shutdown with Thread Pool enabled, a mutex could be left locked. Bug fixed #1702330 (Daniel Black).
Dynamic row format feature to support
BLOB/VARCHARinMEMORYtables requires all the key columns to come before anyBLOBcolumns. This requirement, however, was not enforced, allowing creatingMEMORYtables in unsupported column configurations, which then crashed or lose data in usage. Bug fixed #1731483.After fixing bug #1668602, bug #1539504, and bug #1313901,
CREATE/DROP TEMPORARY TABLEstatements were forbidden incorrectly in transactional contexts, including function and trigger calls, even when they required no binary logging at all. Bug fixed #1711781.Running
ANALYZE TABLEwhile a long-running query is accessing the same table in parallel could lead to a situation where new queries on the same table are blocked in aWaiting for table flushstate. Fixed by stoppingANALYZE TABLEflushing affected InnoDB and TokuDB tables from the table definition cache. Bug fixed #1704195 (upstream #87065).CREATE TABLE ... LIKE ...did not use the sourcerow_formaton target TokuDB table. Bug fixed #76.TokuDB would encode already encoded database name for a directory name. Bug fixed #74.
其他 bug 修复：#1720810, #83, #80 和 #75
详情请查看发布说明和 GitHub 发布主页。
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