On Thu, May 17, 2018 at 10:29 PM, Robert Haas <robertmh...@gmail.com> wrote: > Unless the indexing system actually can't reference the first element > of *pds, and -1 means the second element. But then I think we need a > more verbose explanation here.
First element in *pds list (and the array subsequently created from it) contains the root table's entry. So, a -1 does mean the 2nd entry in that list/array. A 0 in the indexes array always refers to a leaf partition and hence an index into the array for leaf partitions. Thanks, Amit
