Re: concurrent re-partitioning of declarative partitioned tables

On Wed, 2 Dec 2020 at 16:07, David G. Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>
wrote:

> On Mon, Nov 30, 2020 at 8:36 AM Nick Cleaton <nick(at)cleaton(dot)net> wrote:
>
>> I want to set up a large table on postgresql 12.4, using declarative
>> partitioning to partition by record creation date. I'd like to have recent
>> records in small partitions but old records in a few larger partitions, so
>> I want merges. The merges should be concurrent, in the sense that they lock
>> out readers or writers only for very short intervals if at all.
>>
>
> Once a date has passed is the table for that date effectively read-only?
>

No, old records get updated from time to time, although updates are much
less common than for recent records.