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From: Jean Claude van Johnson <vanjohnsonjeanclaude@gmail.com>
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Subject: Re: What is the fastest way to loop over all documents in an index?
Date: Thu, 7 Sep 2017 09:47:40 +0100
References: <FAEF1DC8-46C7-487B-BB51-2813EB2CCA6F@gmail.com>
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archived-at: Thu, 07 Sep 2017 08:47:58 -0000

Many thanks for your answers!

Cheers
Claude

> On 5 Sep 2017, at 21:54, Michael McCandless =
<lucene@mikemccandless.com> wrote:
>=20
> You can call MultiFields.getLiveDocs(IndexReader) to get the bitset
> identifying which documents are not deleted.
>=20
> Mike McCandless
>=20
> http://blog.mikemccandless.com
>=20
> On Tue, Sep 5, 2017 at 2:54 PM, Mikhail Khludnev <mkhl@apache.org> =
wrote:
>=20
>> You can call searcher.search() with MatchAlldocsQuery passing own =
collector
>> impl which will be notified about every non-deleted doc via =
collect(docId).
>>=20
>> On Tue, Sep 5, 2017 at 3:09 AM, Jean Claude van Johnson <
>> vanjohnsonjeanclaude@gmail.com> wrote:
>>=20
>>> Hi there,
>>>=20
>>> I have an use case, were I need to iterate over all documents in an =
index
>>> from time to time.
>>> It seems that the MatchAllDocsQuery is what I should use for this,
>> however
>>> it creates a bunch of Objects (Score etc) that I don=E2=80=99t =
really need.
>>>=20
>>> My question to you is:
>>>=20
>>> What is the fastest way to loop over all documents in an index?
>>> Is it looping over all possible doc id=E2=80=99s (+filtering out =
deleted
>>> documents)?
>>>=20
>>> Thank you very much.
>>>=20
>>> Best regards
>>> Claude
>>>=20
>>>=20
>>=20
>>=20
>> --
>> Sincerely yours
>> Mikhail Khludnev
>>=20


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