Re: list of extended statistics on psql

On 1/7/21 3:47 PM, Alvaro Herrera wrote:
> On 2021-Jan-07, Tomas Vondra wrote:
> 
>> On 1/7/21 1:46 AM, Tatsuro Yamada wrote:
> 
>>> I overlooked the check for MCV in the logic building query
>>> because I created the patch as a new feature on PG14.
>>> I'm not sure whether we should do back patch or not. However, I'll
>>> add the check on the next patch because it is useful if you decide to
>>> do the back patch on PG10, 11, 12, and 13.
>>
>> BTW perhaps a quick look at the other \d commands would show if there are
>> precedents. I didn't have time for that.
> 
> Yes, we do promise that new psql works with older servers.
> 

Yeah, makes sense. That means we need add the check for 12 / MCV.

> I think we would not backpatch any of this, though.

I wasn't really planning to backpatch any of this, of course.


regards

-- 
Tomas Vondra
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