| From: | Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PgHacker <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: varlena beyond 1GB and matrix |
| Date: | 2016-12-23 01:49:43 |
| Message-ID: | CADyhKSUg-db27uNOoMXEiyWQpkcwZb1x19h2hB_RND=_=Y4rZQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
2016-12-23 8:24 GMT+09:00 Robert Haas <robertmhaas(at)gmail(dot)com>:
> On Wed, Dec 7, 2016 at 11:01 PM, Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> wrote:
>> Regardless of the ExpandedObject, does the flatten format need to
>> contain fully flatten data chunks?
>
> I suspect it does, and I think that's why this isn't going to get very
> far without a super-varlena format.
>
Yep, I'm now under investigation how to implement with typlen == -3
approach. Likely, it will be the most straight-forward infrastructure for
other potential use cases more than matrix/vector.
Thanks,
--
KaiGai Kohei <kaigai(at)kaigai(dot)gr(dot)jp>
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