Re: make MaxBackends available in _PG_init

On 8/3/21, 4:14 PM, "Bossart, Nathan" <bossartn(at)amazon(dot)com> wrote:
> On 8/2/21, 4:02 PM, "Bossart, Nathan" <bossartn(at)amazon(dot)com> wrote:
>> On 8/2/21, 3:42 PM, "Andres Freund" <andres(at)anarazel(dot)de> wrote:
>>> I've wondered, independent of this thread, about not making MaxBackends
>>> externally visible, and requiring a function call to access it. It should be
>>> easier to find cases of misuse if we errored out when accessed at the wrong
>>> time. And we could use that opportunity to add flags that determine which
>>> types of backends are included (e.g. not including autovac, or additionally
>>> including aux workers or prepared xacts).
>>
>> I'm not opposed to this. I can work on putting a patch together if no
>> opposition materializes.
>
> Here is a first attempt.

Here is a rebased version of the patch.

Nathan