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From Walter Underwood <wun...@wunderwood.org>
Subject Re: full-text indexing XML files
Date Fri, 11 Dec 2009 17:48:22 GMT
If you really want to do XML-senstive search, it could be a lot of work in Solr. Lucene is
a flat data model, so hierarchy requires a lot of mapping to the schema or fancy, slow queries.

There are engines that are designed for XML indexing and search, using XQuery, so consider
whether that might be less work overall.

XML engines are less mature than Lucene and Solr, so there is a big performance and scalability
gap between the best free engines (eXist) and the best commercial engines (Mark Logic, where
I work).

wunder
Walter Underwood
Lead Engineer, Mark Logic

On Dec 11, 2009, at 9:42 AM, Feroze Daud wrote:

> Yeah, xml tags as well. Essentially we want to full-text index the file,
> without the need for stemming the tokens.
> 
> Will the SOLR analyzer be able to tokenize the document correctly if it
> does not have any whitespaces (besides those required by XML syntax)?
> 
> -----Original Message-----
> From: Walter Underwood [mailto:wunder@wunderwood.org] 
> Sent: Thursday, December 10, 2009 8:00 PM
> To: solr-user@lucene.apache.org
> Subject: Re: full-text indexing XML files
> 
> What kind of searches do you want to do? Do you want to do searches that
> match the XML tags?
> 
> wunder
> 
> On Dec 10, 2009, at 7:43 PM, Lance Norskog wrote:
> 
>> Or CDATA (much easier to work with).
>> 
>> On Wed, Dec 9, 2009 at 10:37 PM, Shalin Shekhar Mangar
>> <shalinmangar@gmail.com> wrote:
>>> On Thu, Dec 10, 2009 at 5:13 AM, Feroze Daud <ferozed@zillow.com>
> wrote:
>>> 
>>>> Hi!
>>>> 
>>>> 
>>>> 
>>>> I am trying to full text index an XML file. For various reasons, I
>>>> cannot use Tika or other technology to parse the XML file. The
>>>> requirement is to full-text index the XML file, including Tags and
>>>> everything.
>>>> 
>>>> 
>>>> 
>>>> So, I created a input index spec like this:
>>>> 
>>>> 
>>>> 
>>>> <add>
>>>> 
>>>> <doc>
>>>> 
>>>> <field name="id">1001</field>
>>>> 
>>>> <field name="name">NASA Advanced Research Labs</field>
>>>> 
>>>> <field name="address">1010 Main Street, Chattanooga, FL
> 32212</field>
>>>> 
>>>> <field name="content"><listing><id>1001</id><
name > NASA Advanced
>>>> Research Labs </ name ><address>1010 main street, chattanooga,
FL
>>>> 32212</address></listing></field>
>>>> 
>>>> </doc>
>>>> 
>>>> </add>
>>>> 
>>>> 
>>>> 
>>> You need to XML encode the value of the "content" field.
>>> 
>>> --
>>> Regards,
>>> Shalin Shekhar Mangar.
>>> 
>> 
>> 
>> 
>> -- 
>> Lance Norskog
>> goksron@gmail.com
>> 
> 


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