| From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: typos |
| Date: | 2022-01-24 07:07:54 |
| Message-ID: | 20220124070754.GT23027@telsasoft.com |
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| Lists: | pgsql-hackers |
On Mon, Jan 24, 2022 at 04:01:47PM +0900, Michael Paquier wrote:
> On Sun, Jan 23, 2022 at 09:00:01PM -0600, Justin Pryzby wrote:
> > Feel free to ignore this for now and revisit in April...
>
> I don't mind fixing that now. That means less to do later.
Thanks.
> > @Michael: I'm not sure what this is trying to say.
> > 1e9475694b0ae2cf1204d01d2ef6ad86f3c7cac8
> > + First, scan the directory where the WAL segment files are written and
> > + find the newest completed segment file, using as starting point the
> > + beginning of the next WAL segment file. This is calculated independently
> > + on the compression method used to compress each segment.
> >
> > I suppose it should say independently *of* the compression method, but then I
> > still don't know what it means. I checked FindStreamingStart().
> > It that doesn't look like it's "calculated independently" - actually, it takes
> > the compression method into account and explicitly handles each compression
> > method.
>
> This means that we are able to calculate the starting LSN even if the
> segments stored use different compression methods or are
> uncompressed. Would you reword that differently? Or perhaps removing
> the last sentence of this paragraph would be simpler in the long run?
different from what? From each other ?
Maybe I would have written:
| This is calculated separately for each segment, which may each use
| different compression methods.
But probably I would just remove it.
--
Justin
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