Re: BUG #18344: Pruning tables partitioned by bool range fails with invalid strategy

David Rowley <dgrowleyml@gmail.com> writes:
> We can do the same for BooleanTests. Given a clause such as: "partkey
> IS NOT false", we can just generate the clause "partkey IS true OR
> partkey IS NULL" and recursively generate steps for that.

+1 ... sounds clean and clearly correct.

> I'm tempted to go a bit further in master only and add support for
> bool IS NOT UNKNOWN and bool IS UNKNOWN using the same method.

These are the same as IS NOT NULL and IS NULL, so I don't see the
need for an OR?

            regards, tom lane