On 25 Mar 2015, at 3:28am, James K. Lowden <jklowden at schemamania.org> wrote:
> Is there some lower bound on either the size of the IN list or the > number of rows in the table being queried? There's nothing in the language to stop you from executing "... WHERE c IN (12) ..." on a zero-row table. It won't be efficient, but it will give the correct result. Simon.