Cancel changes by restoring historized data and some others remarks on "history"

There is an history of changes for every update. Excellent !
But this seems to be only a "for memory" info.

1. The possibility to cancel the last update by restoring the previous value stored in "history" would be very useful.

2. So the possibility to clean the "history" data (even only by an administrator), p.e. on oldest dates, could avoid to have finally an huge table !
(At the present time, the only possibility is to execute an SQL statement, p.e. in phpmyadmin…)

3. When we change ONE word in a big note (several thousands of characters), the whole note is historized. That is almost without utility. So, for big fields as varchar(4000) and text (that I implemented successfully, having some data >30 Kchars to migrate), history should only register effective changes (p.e. as done by "diff" utility).

+ 1
Very good

Hi Jean-Luc,

yes - great idea
Thx.

Klaus