Re: plpgsql raise - parameters can be expressions

> I don't see an easy way to get around this, though, and it's not too
> concerning. Amusingly it does completely break the SQLSTATE and SQLERRM
> tests we added a few days ago :)

Yes, it's true. But with simple plpgsql parser isn't possible expect
miracles :). I think so there is some space for modifications -
read_sql_construct - add control for availability sql params. You can
solve all errors where is expr_until_semi.

This is exactly same situation like

create function ...
begin
  execute 'select '||a;
end; $$

it generate runtime error

>
> BTW, another easy improvement in this area is changing the RAISE format
> string to allow it to be an expression, rather than only a string literal.
>

No problem. But it's maybe big change. And I don't see using format string
too much limiting.

Pavel