Re: select distinct runs slow on pg 10.6

Hi Michael/Justin/Flo,

Thank you all for your assistance. As Michael said, looks like there are no
more tricks left.

On Mon, Sep 9, 2019 at 9:09 PM Michael Lewis <[email protected]> wrote:

> If you can't modify the query, then there is nothing more to be done to
> optimize the execution afaik. Distinct is much slower than group by in
> scenarios like this with many columns. You already identified the disk sort
> and increased work mem to get it faster by 3x. There are not any other
> tricks of which I am aware.
>