| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, "masao(dot)fujii(at)oss(dot)nttdata(dot)com" <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "mengjuan(dot)cmj(at)alibaba-inc(dot)com" <mengjuan(dot)cmj(at)alibaba-inc(dot)com>, "Jakub(dot)Wartak(at)tomtom(dot)com" <Jakub(dot)Wartak(at)tomtom(dot)com>, Ryo Matsumura <matsumura(dot)ryo(at)fujitsu(dot)com> |
| Subject: | Re: prevent immature WAL streaming |
| Date: | 2021-10-13 20:36:55 |
| Message-ID: | 20211013203655.7pqm2bgbljjrkdgn@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2021-10-13 12:13:45 -0700, Andres Freund wrote:
> On 2021-10-13 15:52:46 -0300, Alvaro Herrera wrote:
> > I think I realized partway through writing the test that I could use
> > emit_message instead of using a batched row insert ... so, yeah, we
> > can use it here also.
>
> Cool. Even if we want to use inserts, lets at least make the rows wide...
>
> I think it'd be good to have a bit of variance in record width. So perhaps
> adding a bit of random() in to influence record width would be a good idea?
Something very roughly like the attached. Perhaps that's going a bit overboard
though. But it seems like it might be something we could use in a few tests?
| Attachment | Content-Type | Size |
|---|---|---|
| fill_seg.sql | application/sql | 1.7 KB |
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