A tiny improvement of psql - Mailing list pgsql-hackers

From Kevin Wang
Subject A tiny improvement of psql
Date
Msg-id CAAZWVYpquc=nHUAnmSS62SYS0wQe8SNNr_X6H-=ba9i5BWJOjA@mail.gmail.com
Whole thread Raw
Responses Re: A tiny improvement of psql
Re: A tiny improvement of psql
Re: A tiny improvement of psql
List pgsql-hackers
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.

Another requirement is: could we use / to repeat executing the last command in plsql just like sqlplus in Oracle?

I will try to learn how to fix it sooner or later, but if some proficient hacker focuses on this, it can be fixed quickly, I guess.

Thoughts?

Regards,

Kevin

pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: Password leakage avoidance
Next
From: Alexander Korotkov
Date:
Subject: Re: Bug in nbtree optimization to skip > operator comparisons (or < comparisons in backwards scans)