On Thu, May 17, 2018 at 10:36 AM, Amit Langote <amitlangot...@gmail.com> wrote:
> 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.

All right, so let's just say that explicitly.  Maybe something like
the attached.

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Attachment: another-try.patch
Description: Binary data

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