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From: Hans Lund <ha.lund@gmail.com>
Date: Thu, 8 Dec 2016 18:00:35 +0100
Message-ID: <CALUM-yta5hngmhhXCprT376s13OLwqUhUn2a4e6QGfR5=3YUuw@mail.gmail.com>
Subject: Re: FieldValueQuery
To: Lucene Users <java-user@lucene.apache.org>
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archived-at: Thu, 08 Dec 2016 17:00:41 -0000

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Of cause! Almost too obvious  ;-) thx alot - I'll spend some time wondering
why that didn't pop up in my mind as a solution.


On Thu, Dec 8, 2016 at 5:16 PM, Adrien Grand <jpountz@gmail.com> wrote:

> Le jeu. 8 d=C3=A9c. 2016 =C3=A0 16:42, Hans Lund <ha.lund@gmail.com> a =
=C3=A9crit :
>
> > That would be a solution for sure - but it has the drawback of doubling
> the
> > indexed fields pr document.
> >
>
> If you want to do it for all fields, you could use the name of the field =
as
> a value, for instance has_field:foo, has_field:bar, etc. This is how
> Elasticsearch implements its exists query. One interesting thing to note =
is
> that fields that appear in all documents will require very little storage
> since the encoding we use for postings lists is optimized when all docs
> have a given value.
>

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