Feature MySQL Series
Unions 4.0
Subqueries 4.1
R-trees 4.1 (for the MyISAM storage engine)
Stored procedures and functions 5.0
Views 5.0
Cursors 5.0
XA transactions 5.0
Triggers 5.0 and 5.1
Event scheduler 5.1
Partitioning 5.1
Pluggable storage engine API 5.1
Plugin API 5.1
InnoDB Plugin 5.1
Row-based replication 5.1
Server log tables 5.1
!!!!!!!!!!!!!!! 总之,一句话:用最新的稳定版本是没错的!!!!!!!!!!!!!!!!