Re: help with generation_series in pg10

2018-01-09 11:01 GMT+01:00 Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>:
> Márcio A. Sepp wrote:
>
>> 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;
>
>> 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?
>
> --
> Álvaro Herrera https://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
>

You can add a generated series as seconds, minutes, hours ... to a
base timestamp.
Yes, it's not an easy going expression, but I'd do it like this.

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Vincenzo Romano - NotOrAnd.IT
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