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Date: Thu, 26 May 2016 07:47:42 -0500 (CDT)
From: Daniel Bigham <danielb@wolfram.com>
To: java-user@lucene.apache.org
Message-ID: <1329981225.22020768.1464266862079.JavaMail.zimbra@wolfram.com>
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Subject: Re: Multiple values for a field: Stable order?
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Thread-Topic: Multiple values for a field: Stable order?
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archived-at: Thu, 26 May 2016 12:47:47 -0000

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That's perfect -- I'm interested in the stored field case. Thanks!=20

----- On May 26, 2016, at 3:46 AM, Adrien Grand <jpountz@gmail.com> wrote:=
=20

> It depends which Lucene API you are talking to. For the inverted index, t=
he
> order should be irrelevant. For doc values, Lucene will return values in
> sorted order per document. Finally stored fields will return values in th=
e
> same order as they have been added to the Document at index-time (we do n=
ot
> guarantee this across different field names, but for values that are
> associated with the same field name, I think this is fine to assume).

> Le mer. 25 mai 2016 =C3=A0 22:00, Daniel Bigham <danielb@wolfram.com> a =
=C3=A9crit :

> > I've recently become aware that Lucene allows duplicate field names,
> > which essentially allows multiple values to be associated with a field.

> > A follow-up question is whether the order of the values is maintained..=
.
> > if I store the values "A", "B", and then "C" in a given field for a
> > document, and then I later get the values via:

> > IndexableField[] f =3D doc.getFields(fieldName);
> > for (int i =3D 0; i < f.length; ++i)
> > {
> > ...
> > }

> > ... will the values come back in the same order I added them?

> > Thanks,
> > Daniel

> > ---------------------------------------------------------------------
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