Re: "debug_invalidate_system_caches_always" is too long

Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> On 7/5/21 11:46 PM, Bharath Rupireddy wrote:
>> On Tue, Jul 6, 2021 at 12:43 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> I like "debug_flush_caches" --- it's short and accurate.

>> Do we always flush the cache entries into the disk? Sometimes we just
>> invalidate the cache entries in the registered invalidation callbacks,
>> right? Since we already use the term "clobber" in the user visible
>> config option --clobber-cache, isn't it consistent to use
>> debug_clobber_caches?

> I think 'flush' here means simply 'discard'. Maybe that would be a
> better word to use.

"Discard" could be misinterpreted too, no doubt. None of these words
have one single exact meaning, so I have only limited patience for
this sort of argumentation.

(As for initdb's "--clobber-cache", I'm assuming we'd rename that to
match whatever we come up with here. It is what it is now only because
I was unwilling to call it "--use-debug-invalidate-system-caches-always".)

regards, tom lane