Re: Reduce "Var IS [NOT] NULL" quals during constant folding

On Thu, May 22, 2025 at 11:51 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> BTW, in my mind the current thread is certainly v19 material,
> so I have not looked at Richard's patch yet.

Yeah, this patchset is targeted for v19.  Maybe we could be more
aggressive and have 0001 and 0002 in v18?  (no chance for 0003 though)

This patchset does not apply anymore due to 2c0ed86d3.  Here is a new
rebase.

Thanks
Richard