On Thu, 2007-12-13 at 22:06 -0500, Tom Lane wrote: > I guess that on purely philosophical grounds, it's not an unreasonable > behavior. For example, "LIMIT n" means "output at most n tuples", > not "output exactly n tuples". So when it outputs no tuples in the face > of a negative limit, it's meeting its spec.
If "LIMIT n" means "emit at most n tuples", then a query that produces 0 rows with n < 0 is arguably violating its spec, since it has produced more tuples than the LIMIT specified (0 > n). Interpreted this way, no result set can be consistent with a negative limit, so I'd vote for throwing an error. -Neil ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
