On Sun, Dec 28, 2025 at 9:45 PM Richard Guo <rguo@postgresql.org> wrote:
> Ignore PlaceHolderVars when looking up statistics
>
> Back-patch to v18. Although this issue exists before that, changes in
> this version made it common enough to notice. Given the lack of field
> reports for older versions, I am not back-patching further.
Generally we don't back-patch fixes that could change plans, because
it tends to produce user complaints. It's maybe more justifiable in
this case because v18 is quite new and you didn't back-patch to older
releases, but are we sure that it's warranted even there?
--
Robert Haas
EDB: http://www.enterprisedb.com