How to add 1 hour to currrent_timestamp in mysql which is the default value?

Question

I have a database with timestamp field which takes current timestamp by default, but I have problem with the time, like if I insert the row at 9:00 it will take 8 as timestamp.

So my question is how to make current_timestamp in that table add one hour by default? I know you can do it with php but I prefer pure mysql solution.

I have a problem with the server timezone but I don't want to change it, since I am afraid this might affect other databases on server, while I want to change timestamp only in one database.

Answer 1

Simply you cannot do CURRENT_TIMESTAMP + INTERVAL 1 HOUR, but you can define a trigger instead:

CREATE TRIGGER tr_dt_table BEFORE INSERT ON your_table FOR EACH ROW BEGIN
  SET NEW.datetime_field = NOW() + INTERVAL 1 HOUR;
END

And remove any default values of that field (i.e. make it NULL by default) in order to avoid contradictions.