command history in ksh missed when I set $EDITOR

[Tomas Bodzar]

Hi all,

When I set this in my .profile

# Editor
EDITOR=/usr/bin/vi
export EDITOR

then I don't have command history,I can't use arrow keys for going to previous
command,
CTRL+R is not running too.

What's wrong with this setting?I'm using ksh

Thx