On Wed, Sep 21, 2016 at 2:18 PM, pinker wrote:
> Jeff Janes wrote
> > Try swapping the order of the columns in the exclude constraint. You
> want
> > the more selective criterion to appear first in the index/constraint.
> > Presumably "key with =" is the most selective, especially if many of you
Jeff Janes wrote
> Try swapping the order of the columns in the exclude constraint. You want
> the more selective criterion to appear first in the index/constraint.
> Presumably "key with =" is the most selective, especially if many of your
> periods are unbounded.
I would not be so sure with tha
