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From: Adrien Grand <jpountz@gmail.com>
Date: Thu, 22 Dec 2016 17:57:52 +0000
Message-ID: <CAPsWd+PPFw2cyZuNpPhERU4VouGhEm5CcW07D1u1Ng-y6MW_Rw@mail.gmail.com>
Subject: Re: Sorting, Range Query, faceting - NumericDocValuesField Vs LongField
To: java-user@lucene.apache.org
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archived-at: Thu, 22 Dec 2016 17:58:07 -0000

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Le jeu. 22 d=C3=A9c. 2016 =C3=A0 18:50, Kumaran Ramasubramanian <kums.134@g=
mail.com>
a =C3=A9crit :

> I want to provide sorting, range search and faceting in numeric fields.
>
> AFAIK, Purpose of different numeric field types are,
>
> NumericDocValuesField supports sorting and faceting
> LongField/IntField supports range query and sorting
>

LongField/IntField only support querying, NumericDocValuesField is the one
that supports sorting.

Also note that as of 6.0 LongField and IntField have been replaced with
LongPoint and IntPoint.


> 1. Should i duplicate one field in above mentioned types to achieve all t=
he
> three features in numeric?
>

Yes. By the way it is perfectly fine to use the same field name for the
point field and the doc values field.


> 2. If i am ready to sacrifice faceting, is it advisable to use LongField
> for sorting and range query?
>

Like said above you need doc values for sorting.


> 3. During sorting, Will NumericDocValuesField( column stride storage)
> perform better than LongField(trie structure)? If so , should i duplicate
> field in both 1 and 2 cases?
>

Same note here.

Adrien

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