Re: Renaming of pg_xlog and pg_clog

On 29 Aug 2016 12:10 PM, "Jim Nasby" <Jim(dot)Nasby(at)bluetreble(dot)com> wrote:
>
> On 8/26/16 4:08 PM, Andres Freund wrote:
>>
>> Splitting of ephemeral data seems to have a benefit, the rest seems more
>> like rather noisy busywork to me.
>
>
> People accidentally blowing away pg_clog or pg_xlog is a pretty common
occurrence, and I don't think there's all that many tools that reference
them. I think it's well worth renaming them.

Yeah. I've seen it in BIG production users who really should have known
better.

People won't see a README in amongst 5000 xlog segments while freaking out
about the sever being down.

I don't care if it comes as part of some greater reorg or not but I'll be
really annoyed if scope creep lands up killing the original proposal to
just rename these dirs. I think that a simple rename should be done first.
Then if some greater reorg is to be done it can be done shortly after. The
only people that'll upset are folks tracking early 10.0 dev and they'll be
aware it's coming.