> >   While writing web application I found that it would
> > be very nice for me to have "null" WHERE clause. Like
> > WHERE 1=1. Then it is easy to concat additional
> > conditions just using $query . " AND col=false" syntax.
> >
> >   But which of the possible "null" clauses is the fastest
> > one?
> I suspect WHERE true, but is it really necessary.

  Thanks. I'll use "WHERE true" for now. And of course it is
not necessary it just simplifies code a bit.

> Most languages will have a join() operator that lets you do something
> $where_cond = join(' AND ', @list_of_tests)

  That's not the case. Test may or may not be performed based on
web form values.


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