Re: Bad query plan when you add many OR conditions

Marco Colli <collimarco91@gmail.com> writes:
> As you can see it is a *index scan* and not an *index only* scan... I don't
> understand why. The index includes all the fields used by the query... so
> an index only scan should be possible.

Huh?  The query is "select * from ...", so it retrieves *all* columns
of the table.

            regards, tom lane