| From: | Amit Langote <amitlangote09(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
| Subject: | Re: Incorrect comment in get_partition_dispatch_recurse |
| Date: | 2018-05-17 14:36:30 |
| Message-ID: | CA+HiwqHCL+oqOLpvDFuQUMdJSjSApZ_4W2m0zPz6XYo61AcT-A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, May 17, 2018 at 10:29 PM, Robert Haas <robertmhaas(at)gmail(dot)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
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