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 -- Erik