On Wed, Apr 26, 2017 at 5:34 PM, Kim Gräsman <[email protected]> wrote:

> Den 26 apr. 2017 3:45 em skrev "Richard Hipp" <[email protected]>:
>
> > On 4/26/17, Richard Hipp <[email protected]> wrote:
> > >  That would imply you are changing about 5 million pages.
>


> Great, that means the numbers add up. This is a monster transaction
> updating 5M rows, and page size is 512 bytes, so I think we have roughly 1
> row/page.
>

Which such a small page size though? What's the native filesystem page size
in your situation?
I suspect having a single row per page (or worse, fewer than 1 per page) is
not ideal perf-wise, no? --DD
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