[rules-users] "distinct" operator in a query

[Wolfgang Laun]

What about exists?

On 13/11/2013, braveheart85 <andrea.pacifico.85 at gmail.com> wrote:
> Hello guys,
>
> I make a very simple question, especially for a curiosity.
> I have this query:
>
> query "QuerySelected"
> 	$result: Person( identifierCode == "ABCDEF12H45S100A" )
> 	$y: YearData( id ==  $result.identifierCode )
> 	exists Vehicle( ) from $y.vehicles
> end
>
> With this query i get two equal person results because there are two annual
> that matches with condition.
> There is a simple way in drools to apply "distinct" operator or avoid this
> behaviour.
>
> Best regards
>
> Andrea
>
>
>
> --
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