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From Chantal Ackermann <>
Subject Re: Create new (sub)index from existing one
Date Mon, 03 Aug 2009 09:01:23 GMT
Hi Otis,

thank you for your answer. I will have a look at the link.
It can happen that search queries include several languages, and I 
thought at first, that creating a multilingual (sub-)index from a mix of 
the existing core indexes could be a way. But that is not a good 
solution, isn't it? I do have to decide on a language when posting the 
query to SOLR in order to apply the correct analyzers to the query 
input. So, it would be better to keep the languages separate and rather 
post several queries for each language, should that need arise. That is 
still fast enough, I think.


Otis Gospodnetic schrieb:
> Hi Chantal,
> If you are really dealing with languages (i.e. not very dynamic or large list of cores),
could you simply copy a core and then delete all documents that don't satisfy the language
criteria? (e.g. copy the main core with docs in all languages, and then delete all docs that
are not in, say, Japanese).
> Otis
> P.S.
> May want to consider
> ----- Original Message ----
>> From: Chantal Ackermann <>
>> To: "" <>
>> Sent: Tuesday, July 28, 2009 4:54:27 AM
>> Subject: Create new (sub)index from existing one
>> Hi all,
>> I was wondering whether it is possible to create a new index out of existing
>> ones.
>> Say, you have multiple indexes (multicore) that are based on language. There are
>> client applications that should see only a subset of the data contained in the
>> indexes. Instead of constantly having to restrict the queries coming from that
>> client - would it be possible and would it make sense to create a subset of the
>> indexes that contains only the data that that client should see? A bit like a
>> cache.
>> Sorry, if that is answered already somewhere - I couldn't find anything
>> searching Google. Maybe I was looking for the wrong keywords.
>> Cheers,
>> Chantal
>> -- Chantal Ackermann

Chantal Ackermann

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