On 10 March 2015 at 13:44, Niphlod <niph...@gmail.com> wrote:

> 2 queries ? nooooo
>
> subselect - way, 1 query.
>
>
And you think using a subselect makes it one query?

I had a mistake in my query: orderby should be groupby  - which is more
efficient (at least on PostgreSQL than using "distinct").

A query explain on your query shows:

[image: Inline images 1]

Thinking a subselect makes it one query is an illusion.

Regards
Johann
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