Re: [RFC] Add an until-0 loop in psql

>> What you don't see here is that you're using your psql process's
>> available open file handles as a stack, and when you hit that limit psql
>> will fail. If you remove that limit, then you get a bit further before psql
>> segfaults on you. I think I got ~2700 files deep before that happened. Your
>> stackage may vary.
>>
>> I'm not saying this is a good solution, quite the contrary. I think the
>> sane solution is right around the corner in Version 11.
>>
>> Now if we just had a way of passing parameters into DO blocks...
>>
>
> I hope so there will be schema (temporal) variables:
>
> create temp variable foo int default 10;
>
> do $$
> begin
> for i in 1..foo loop
> raise notice '%', i;
> end loop;
> end;
> $$;
>

That would be nice too.

A while back, somebody explained why implementing parameters in a DO block
was so hard, but I don't recall why, and the search terms "do" and
"parameter" don't really narrow things down.