Cédric Villemain <cedric.villemain.debian@gmail.com> writes:
> I think you (Robert) misunderstood dramatically what Pavel try to do.
> Pavel did an excellent optimization work for a specific point. This
> specific point looks crucial for me in the current behavior of
> PostgreSQL[1]. AFAIS Pavel didn't want to implement a genious syntax,
> but an optimization feature.
As near as I can tell, Pavel is bullheadedly insisting on adding new
syntax, not on the optimization aspect of it. I already pointed out
how he could get 100% of the performance benefit using the existing
syntax, but he doesn't appear to be willing to pursue that route.
regards, tom lane