news@emmanuelsambo.com writes:
> The following bug has been logged on the website:
> Bug reference: 13733
> Logged by: Emmanuel Sambo
> Email address: news@emmanuelsambo.com
> PostgreSQL version: 9.4.5
> Operating system: Apple Mac OS X El Capitan 10.11.1
> Description:
> Upgrading from PostgreSQL 9.4.4 to 9.4.5 deleted my entire psql history in
> two of my ~/.psql_history-<db>
> Looking at this file I can see:
> - all the spaces are encoded as utf-8: "\040"
> - each history entry is truncated at 1021 characters
This probably means you accidentally switched from using libedit to
libreadline, or vice versa, when you rebuilt Postgres. They're not
very compatible as to history file format :-(
regards, tom lane