Re: SQL-standard function body

st 1. 7. 2020 v 16:14 odesílatel Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> napsal:

> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> > In my experience, there's certainly demand for some kind of mode where
> > plpgsql functions get checked at function definition time, rather than
> > at execution time.
>
> Yeah, absolutely agreed. But I'm afraid this proposal takes us too
> far in the other direction: with this, you *must* have a 100% parseable
> and semantically valid function body, every time all the time.
>
> So far as plpgsql is concerned, I could see extending the validator
> to run parse analysis (not just raw parsing) on all SQL statements in
> the body. This wouldn't happen of course with check_function_bodies off,
> so it wouldn't affect dump/reload. But likely there would still be
> demand for more fine-grained control over it ... or maybe it could
> stop doing analysis as soon as it finds a DDL command?
>

This simple analysis stops on first record type usage. PLpgSQL allows some
dynamic work that increases the complexity of static analysis.

Regards

Pavel

> regards, tom lane
>
>
>