On Fri, Aug 26, 2005 at 16:14:18 -0400, Chris Hoover <[EMAIL PROTECTED]> wrote: > Hopefully a quick question. > > In 7.3.4, how does the planner execute a query with union alls in it? > > Does it execute the unions serially, or does it launch a "thread" for > each union (or maybe something else entirely).
Postgres doesn't have parallel execution of parts of queries. So it is going to do one part followed by the other part. ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster