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

[Richard Guo]

On Mon, Jun 30, 2025 at 4:26 PM Richard Guo <guofengli...@gmail.com> wrote:
> On Wed, May 28, 2025 at 6:28 PM Richard Guo <guofengli...@gmail.com> wrote:
> > This patchset does not apply anymore due to 2c0ed86d3.  Here is a new
> > rebase.

> This patchset does not apply anymore, due to 5069fef1c this time.
> Here is a new rebase.

Here is a new rebase.  I moved the call to preprocess_relation_rtes to
a later point within convert_EXISTS_sublink_to_join, so we can avoid
the work if it turns out that the EXISTS SubLink cannot be flattened.
Nothing essential has changed.

The NOT-IN pullup work depends on the changes in this patchset (it
also relies on the not-null information), so I'd like to move it
forward.

Hi Tom, Robert -- just to be sure, are you planning to take another
look at it?

Thanks
Richard

v7-0001-Expand-virtual-generated-columns-before-sublink-p.patch
Description: Binary data

v7-0002-Centralize-collection-of-catalog-info-needed-earl.patch
Description: Binary data

v7-0003-Reduce-Var-IS-NOT-NULL-quals-during-constant-fold.patch
Description: Binary data