There is actualised version, for people who are interested on it.
Minimally it should be sample of variadic "any" function for playing.
Don't afraid, I don't plan to send it to commit fest.
regards
Pavel
2009/9/10 Alvaro Herrera <alvherre@commandprompt.com>:
> Pavel Stehule escribió:
>
>> Please, try to compile and run sprintf function from attachment
>
> There's a minor bug in the comparison to PG_NARGS() inside the loop,
> fixed in this version.
>
> The one problem I have with this is that if the format string does not
> contain any % (and thus there is no extra argument), it errors out:
>
> alvherre=# select text_format('ouch');
> ERROR: function text_format(unknown) does not exist
> LÍNEA 1: select text_format('ouch');
> ^
> SUGERENCIA: No function matches the given name and argument types. You might need to add explicit type casts.
>
> AFAICS fixing this would require a second pg_proc entry for this
> function.
>
>
> alvherre=# select text_format('% was % at % and said % % times', 'Pavel'::text, 'here'::unknown, now(),
row('a','b','c'),'{42}'::int[]);
> text_format
> -----------------------------------------------------------------------------
> Pavel was here at 2009-09-10 13:12:09.054653-04 and said (a,b,c) {42} times
> (1 fila)
>
> --
> Alvaro Herrera http://www.CommandPrompt.com/
> PostgreSQL Replication, Consulting, Custom Development, 24x7 support
>
