>>>>> "Rich" == Rich Shepard <rshepard@xxxxxxxxxxxxxxx> writes: Rich> I found a couple of web pages describing the lateral join yet Rich> have not correctly applied them. The manual's page did not help Rich> me get the correct syntax, either. Think I'm close, however: Rich> select p.person_id, p.lname, p.fname, p.direct_phone, o.org_name, a.next_contact Rich> from people as p, organizations as o Rich> lateral Rich> (select a.next_contact LATERAL (SELECT ...) is syntactically like (SELECT ...) in that it comes _after_ a "," in the from-clause or after a [LEFT] JOIN keyword. Don't think of LATERAL as being a type of join, think of it as qualifying the (SELECT ...) that follows. Rich> from activities as a Rich> where a.next_contact is not null and a.next_contact <= 'today' and Rich> a.next_contact > '2018-12-31' You'd want a condition here that references the "people" table; the whole point of LATERAL is that it opens up the scope of column references in the subquery to include those tables which are to its left in the from-clause. Rich> order by person_id,next_contact); and I'm guessing you want that ordered by next_contact alone, possibly with LIMIT 1 to get just the nearest following next_contact time. -- Andrew (irc:RhodiumToad)
