At 2021-02-01T20:14:04-05:00, Matt Zagrabelny <mzagr...@d.umn.edu> sent: > select count(id) from call_records where id is null; > count > ═══════ > 0 > (1 row) > > Time: 0.673 ms > > Which field is count(*) counting if it is counting nulls? > > -m
What you're overlooking is that, at least to my reading of your original query, id would be null for any dates that do not have any corresponding call_records (because you used a left join).
