Chuck Martin <clmartin@xxxxxxxxxxxxxxxx> writes: > I need help figuring out why a query is not returning the records I expect > it to. I'm searching on a DateTime column (timestamp without time zone - > not nullable). The query includes: > AND event.Primaryresp_fkey = 5000011 AND event.DateTime <= 'May-1-2019' > AND event.EventDone < 1 > This does not return a record that has a DateTime value "May 1, 2019 9:52 > AM". Well, no, since the implied value of the constant is 'May-1-2019 00:00'. If you only want 1-day precision of the comparison, maybe you should cast or truncate the timestamp down to date. regards, tom lane