Re: Modernizing our GUC infrastructure

Hi

> I think a large part of the reason the schema-variables patch
> has gone sideways for so many years is that it's an ambitious
> overdesign.
>

Last two weeks this patch is shorter and shorter. I removed a large part
related to check of type consistency, because I can do this check more
easily - and other work is done by dependencies.

Big thanks to Julien - it does a lot of work and he shows me a lot of
issues and possibilities on how to fix it. With Julien work this patch
moved forward. Years before it was just a prototype.

This patch is not too complex - important part is session_variable.c with
1500 lines , and it is almost simple code - store value to hashtab, and
cleaning hash tab on sinval or on transaction end or abort + debug routine.

[pavel(at)localhost commands]$ cloc session_variable.c
1 text file.
1 unique file.
0 files ignored.

github.com/AlDanial/cloc v 1.90 T=0.02 s (50.0 files/s, 77011.1 lines/s)
-------------------------------------------------------------------------------
Language files blank comment
code
-------------------------------------------------------------------------------
C 1 257 463
820
-------------------------------------------------------------------------------

In other files there are +/- mechanical code

>
> regards, tom lane
>
>
>