[EMAIL PROTECTED] wrote: > To sum up, I am looking for a (decently efficient) scheme that is able to > > (1) pass arbitrary conditional expressions from WHERE to the executor in a > structure preserving way. > (2) annotate arbitrary expressions with weights that survive on its way from > the parser to the executor. > (3) access the logical value of particular subexpressions. > > I have some basic ideas how at least some of the requirements might be > achieved. But as I am not totally satisfied with my ideas I hope you can > provide me with some fresh input.
Why? What are you trying to achieve? -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org
