March 29, 2015

[MySQL 5.7.6] Generated Column

updated @2015-08-09, mysql-5.7.8-rc对generated column的改进:   InnoDB: InnoDB now supports secondary indexes on virtual generated columns. For more information, seeCREATE TABLE and Generated Columns. InnoDB: Virtual generated column values no longer occupy space in database rows. With this change, a table rebuild is no longer required when adding or dropping virtual generated columns. Virtual generated columns […]