Re: A tiny improvement of psql

Hello hackers!

I am an Oracle/PostgreSQL DBA, I am not a PG hacker.  During my daily job, I find a pain that should be fixed.

As you know, we can use the UP arrow key to get the previous command to avoid extra typing. This is a wonderful feature to save the lives of every DBA. However, if I type the commands like this sequence: A, B, B, B, B, B, B,  as you can see, B is the last command I execute. 

But if I try to get command A, I have to press the UP key 7 times.  I think the best way is: when you press the UP key, plsql should show the command that is different from the previous command, so the recall sequence should be B -> A, not B -> B -> ... -> A.  Then I only press the UP key 2 times to get command A.

I think this should change little code in psql, but it will make all DBA's lives much easier.  This is a strong requirement from the real DBA. Hope to get some feedback on this.