| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com> |
| Cc: | Jesper Krogh <jesper(at)krogh(dot)cc>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Make tuples_per_page pr. table configureable. |
| Date: | 2010-09-22 10:24:43 |
| Message-ID: | AANLkTimXjt4o0Dub+ZsS_GSj=vBc+DMH-hr05atOvNCj@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Sep 21, 2010 at 10:33 PM, Itagaki Takahiro
<itagaki(dot)takahiro(at)gmail(dot)com> wrote:
> I didn't read previous discussions, but did we have consensus that "number
> of tuples" is better than other units for the parameter? For example,
> "threshold bytes" or "percentage in a page" also seems to be reasonable for me.
I think either of those is more intuitive than tuples per page, and
especially the first. But I'm not sure that's really the knob we want
either. I feel like what people are really trying to tune here is
more like - if a single datum is larger than X bytes, push it out.
But I might be all wet.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company
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