The cache feature is not used frequently but needs more time to maintain.
I think there are many machism to handle the cache out of ORM. So let's remove it.
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2347
Error: unknown colType UNSIGNED FLOAT
in mysql 5.6.27 or 5.7.32
Fix#2123
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2143
Co-authored-by: Ryan Liu <azhai@126.com>
Co-committed-by: Ryan Liu <azhai@126.com>