> On 20 Nov 2019, at 13:15, Andy Fan <zhihui(dot)fan1213(at)gmail(dot)com> wrote:
> 2. why pg can't do it, while greenplum can?
It's worth noting that Greenplum, the example you're referring to, is using a
completely different query planner, and different planners have different
characteristics and capabilities.
cheers ./daniel