Re: Reducing connection overhead in pg_upgrade compat check phase

> On 9 Feb 2024, at 00:04, Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>
>> On 8 Feb 2024, at 15:16, Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>
>> One option could perhaps be to include a version number for <= comparison, and
>> if set to zero a function pointer to a version check function must be provided?
>> That would handle the simple cases in a single place without messy logic, and
>> leave the more convoluted checks with a special case function.
>
> The attached is a draft version of this approach, each check can define to run
> for all versions, set a threshold version for which it runs or define a
> callback which implements a more complicated check.

And again pgindented and with documentation on the struct members to make it
easy to add new checks. A repetitive part of the report text was also moved to
a single place.

--
Daniel Gustafsson