Re: pgsql: Add basic TAP tests for psql's tab-completion logic.

On Sat, Jan 4, 2020 at 12:56 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Yeah, there is still something unexplained about that.  We've so far
> failed to pin the blame on either readline version or environment
> settings ... but what else could be causing you to get different
> results?

Tom just advised me via private e-mail that my termcap database may be
the issue here. Looks like he was right. I did a "sudo aptitude
reinstall ncurses-base", and now the tests pass against HEAD. (I
probably should have tried to preserve things before going ahead with
that, but that didn't happen -- I had no reason to think that the
system was affected by any kind of corruption.)

I am very sorry for having wasted your time on this wild goose chase,
Tom. The only explanation I can think of is that maybe it relates to
my upgrading the OS in-place. That is, maybe my system was affected by
a subtle, low probability bug due to a major version change in
ncurses-base.

-- 
Peter Geoghegan