Came here to say the same thing. An article about NULL without even a passing mention of IS DISTINCT FROM is embarrassing. Truth table here: https://wiki.postg

Came here to say the same thing. An article about NULL without even a passing mention of IS DISTINCT FROM is embarrassing. Truth table here: https://wiki.postgresql.org/wiki/Is_distinct_from#Truth_Table https://wiki.postgresql.org/wiki/Is_distinct_from#Truth_Tabl...