Re: Reducing connection overhead in pg_upgrade compat check phase

On Mon, Mar 13, 2023 at 03:10:58PM +0100, Daniel Gustafsson wrote:
> The attached v3 is a rebase to handle conflicts and with the above comments
> adressed.

Thanks for the new version of the patch.

I noticed that git-am complained when I applied the patch:

    Applying: pg_upgrade: run all data type checks per connection
    .git/rebase-apply/patch:1023: new blank line at EOF.
    +
    warning: 1 line adds whitespace errors.

+                for (int rowno = 0; rowno < ntups; rowno++)
+                {
+                    found = true;

It looks like "found" is set unconditionally a few lines above, so I think
this is redundant.

Also, I think it would be worth breaking check_for_data_types_usage() into
a few separate functions (or doing some other similar refactoring) to
improve readability.  At this point, the function is quite lengthy, and I
count 6 levels of indentation at some lines.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com