Thanks all for your answers ! Much appreciated.
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On Tuesday, 21 May 2024 at 11:02, Laurenz Albe <laurenz.a...@cybertec.at> wrote:
> On Mon, 2024-05-20 at 13:56 +0200, Erik Wienhold wrote:
>
> > On 2024-05-20 12:30 +0200, Laura Smith wrote:
> >
> > > Could someone kindly help me out with the correct syntax ?
> > >
> > > My first thought was the below but that doesn't work:
> > >
> > > update foo set upper(bar_times)=upper(bar_times)+interval '1' hour where
> > > bar_id='abc';
> > > ERROR: syntax error at or near "("
> > > LINE 1: update event_sessions set upper(bar_times)=upper(bar_ti...
> >
> > Use the constructor function:
> >
> > UPDATE foo SET bar_times = tstzrange(lower(bar_times), upper(bar_times) +
> > interval '1' hour);
> >
> > But this does not preserve the inclusivity/exclusivity of bounds from
> > the input range, so you may have to pass in the third argument as well.
> >
> > https://www.postgresql.org/docs/current/rangetypes.html#RANGETYPES-CONSTRUCT
>
>
> If you need to preserve the information whether the upper and lower bounds
> are inclusive or not, you could
>
> UPDATE foo
> SET bar_times = tstzrange(
> lower(bar_times),
> upper (bar_times) + INTERVAL '1 hour',
> CASE WHEN lower_inc(bar_times) THEN '[' ELSE '(' END ||
> CASE WHEN upper_inc(bar_times) THEN ']' ELSE ')' END
> )
> WHERE ...
>
> Yours,
> Laurenz Albe
