> -----Ursprüngliche Nachricht-----
> Von: Tom Lane <tgl@sss.pgh.pa.us>
> Gesendet: Samstag, 18. August 2018 17:29
>
> Well, it's simpler than that: filter quals are always evaluated at the
lowest
> possible plan level.
Thank you. This "always" was not clear to me, but it explains a few similar
cases (with not-so-extreme differences) that I could not understand.
Regards
Klaus