RES: help with generation_series in pg10 - Mailing list pgsql-general

From Márcio A. Sepp
Subject RES: help with generation_series in pg10
Date
Msg-id 005801d38a26$c7068540$55138fc0$@com.br
Whole thread Raw
In response to Re: help with generation_series in pg10  (Merlin Moncure <mmoncure@gmail.com>)
List pgsql-general
> >> > how can i have the same in pg10 as i have had in pg 9.x?
> >>
> >> Move the function call to the FROM clause:
> >>
> >> select g, (g - 1) % 5 + 1 from generate_series(1, 10) g;
> >
> > thank you. That is exact what i need.
> >
> >
> >> > I need it to date type to...  if possible.
> >>
> >> There is a generate_series() variant that can return dates (more
> >> precisely, timestamp with time zone).  But what exactly would you
> >> like returned?
> >
> > In the past i use querys like this to generate some timestamp field:
> > select generate_series (1, 10), generate_series('2018-01-01
> > 10:00'::timestamp, '2018-01-02 10:00'::timestamp, '10 hours');
> 
> With the old behavior you're lucky this ever worked at all.  Doing this
> kind of stuff, you want to write it with a single generate_series
> driver if you can or as a cross product:
> 
> select
>   a, b,c
> from generate_series(1,3) a
> cross join generate_series(1,4) b
> cross join generate_series(1,2) c;

Exactly what I need. Thank you so much!!!




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