Gianni Ceccarelli schrieb am 05.07.2019 um 10:00: >> strict functions with sql null inputs yield sql null output without >> even executing the function > > So when the SQL-level executor sees a call to any function declared > strict with some NULL parameters, it doesn't call the function at > all. `whatever_my_function('a string',1234,NULL)` is always `NULL` > Ah, I see. Thanks for the clarification Then I would question if declaring jsonb_set as "strict" makes sense Thomas