测试效率提升36% ~ 100%,相当可观本文目录
InnoDB: InnoDB now supports parallel index builds, which improves index build performance. In particular, loading sorted index entries into a B-tree is now multithreaded. Previously, this action was performed by a single thread.只有这么简单的一句,没更多扩展解释说明。简言之,就是支持并行构建索引,提升索引构建性能。
Changes in MySQL 8.0.31
Configuring Parallel Threads for Online DDL Operations
Online DDL Memory Management https://dev.mysql.com/doc/refman/8.0/en/online-ddl-memory-management.html)
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