On Fri, May 8, 2020 at 12:07 PM Amit Langote <amitlangote09@gmail.com> wrote:
> On Fri, May 8, 2020 at 2:06 AM Bruce Momjian <bruce@momjian.us> wrote:
> > On Fri, May 8, 2020 at 12:32:16AM +0900, Amit Langote wrote:
> > > c8434d64c implements a new feature whereby, to use partitionwise join,
> > > partition bounds of the tables being joined no longer have to match
> > > exactly. I think it might be better to mention this explicitly
> > > because it enables partitionwise joins to be used in more partitioning
> > > setups.
> >
> > Well, the text says:
> >
> > Allow partitionwise joins to happen in more cases (Ashutosh Bapat,
> > Etsuro Fujita, Amit Langote, Tom Lane)
> >
> > Isn't that what you just said? I just added this paragraph:
> >
> > For example, partitionwise joins can now happen between partitioned
> > tables where the ancestors do not exactly match.
> >
> > Does that help?
>
> Yes, although "ancestors do not exactly match" doesn't make clear what
> about partitioned tables doesn't match. "partition bounds do not
> exactly match" would.
+1 for that change.
Thank you for taking the time to this!
Best regards,
Etsuro Fujita