Re: Critical performance problems on large databases

Gunther Schadow wrote:
> Oleg Bartunov wrote:
>
> > The big issue with LIMIT,OFFSET is that it still use all rows
> > for sorting. I already suggested to use partial sorting to avoid
> > sorting all rows if one selected only first 20 row, for example.
> > It's very important for Web applications because web users usually
> > read first 1-2 pages. Our experimnets have shown 6 times performance
> > win when using partial sorting.
>
>
> That is interesting. I haven't even dared to ask for this.
> Did you contribute that partial sorting code to postgresql?


We have the TODO item, but the code is not written yet.

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