title: Postgres TIMESTAMP query
body: <p>I'm using copy to import a csv file into postgres, one of the fields contains a time value in HH:MM:SS formate. I want to be able to set this to a TIMESTAMP field,  I've looked through lots of documents but I'm struggling to work out what field type to set it to. I see lots of reference to creating fields with timezones or not, a date etc, not really what I'm after. The ultimate aim is to create reports based on time intervals, e.g. all data between 00:00:00 and 06:30:00 etc </p>