revert setting NOT NULL constraints in add_timestamps
Commit 3dbedd28 added NOT NULL constraints both to table creation and modification. For creation the new default makes sense, but the generic situation for changing a table is that there exist records. Those records have no creation or modification timestamps, and in the general case you don't even know them, so when updating a table these constraints are not going to work. See a bug report for this use case in #3334.
Showing
想要评论请 注册 或 登录