"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Wednesday, July 22, 2020, Emanuel Araújo <eacshm@gmail.com> wrote:
>> \r
>> \e
>> -> Open temp file with the same last command "select 1;"
>> is it right?
> Documentation since v10:
> Or, if the current query buffer is empty, the most recently executed query
> is copied to a temporary file and edited in the same fashion.
There's some discussion around that in this thread:
https://www.postgresql.org/message-id/flat/9b4ea968-753f-4b5f-b46c-d7d3bf7c8f90%40manitou-mail.org
The key point is that \r in this case used to clear the "previous query"
buffer since there was nothing for it to remove from the "current query"
buffer. I argued then that that was confusing and counterproductive,
and I still think that.
regards, tom lane