current_timestamp issue

I add a timestamp column,but cannot find any option to set the current_timestamp as its default value.Is there anything wrong？

here is my version。

You updated to a newer nightly build, and now you need some additional *.ini files, which can be installed from the latest nightly installer. Just take the last installer. Afterwards you can go on with updates to the build only.

Background: these *.ini files contain function definitions, like CURRENT_TIMESTAMP which you need there.

After the update the function appeared.Thanks you very much.