On Fri, Jan 5, 2024 at 1:06 PM jian he <jian.universality@gmail.com> wrote:
>
> On Tue, Jan 2, 2024 at 9:59 AM Paul Jungwirth
> <pj@illuminatedcomputing.com> wrote:
> >
> > On 12/31/23 00:51, Paul Jungwirth wrote:
> > > That's it for now.
> >
> > Here is another update. I fixed FOR PORTION OF on partitioned tables, in particular when the attnums
> > are different from the root partition.
> >
> > Rebased to cea89c93a1.
> >
>
> Hi.
>
> +/*
> + * range_without_portion_internal - Sets outputs and outputn to the ranges
> + * remaining and their count (respectively) after subtracting r2 from r1.
> + * The array should never contain empty ranges.
> + * The outputs will be ordered. We expect that outputs is an array of
> + * RangeType pointers, already allocated with two slots.
> + */
> +void
> +range_without_portion_internal(TypeCacheEntry *typcache, RangeType *r1,
> + RangeType *r2, RangeType **outputs, int *outputn)
> I am confused with the name "range_without_portion", I think
> "range_not_overlap" would be better.
>
range_intersect returns the intersection of two ranges.
I think here we are doing the opposite.
names the main SQL function "range_not_intersect" and the internal
function as "range_not_intersect_internal" should be fine.
so people don't need to understand the meaning of "portion".