Re: proposal: plpgsql - iteration over fields of rec or row variable

Hey Pavel,

2010/11/9 Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>

> > a) transformation to common type
> >
> > + simple - it is one day job - function record_to_array,
> > array_to_record, and fieldnames_to_array
> > - lost of type info, hidden problems with IO cast - int a := 10.0/2.0
> > is a problem
> >
> > using a plperl, pltcl is same like @a
> >
>
> I thinking about some simple API, that can be based on transformation
> to text. It can be enough for almost all.
>
> * text[] = record_to_array(record)
> * table(id, key, datatype, value) = record_to_table(record)
> * text = record_get_field(record, text)
> * record = record_set_field(record, text, anyelement)
>
> ??
>
I personally like it. But I propose to add as well:
integer := record_nkeys();
text := record_get_field(record, integer);

> Pavel
>
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--
// Dmitriy.