I agree partially, it actually depends. For instance during index time few of
the synonyms mapping may or may not expand (for e.g.. frequent data index
population from different source). So good apply at index time as well as query
time to achieve complete ratio. Mostly of the time I did similar settings to
meet customer requirements.
For example:
-----------------
Below sample text datatype with synonyms at index & query time (below config
has similar analyzer structure of tokenizer & filter; so we can keep commonly
one <analyzer> config too.)
<fieldType name="text" class="solr.TextField" positionIncrementGap="100"
autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1"
generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0"
splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1"
generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0"
splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KeywordMarkerFilterFactory"
protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
</fieldType>
-Jeevanandam
On Apr 10, 2012, at 12:18 AM, Walter Underwood wrote:
> That is not a good configuration. Synonyms should be expanded at index time,
> not query time. --wunder
>
> On Apr 9, 2012, at 11:43 AM, Jeevanandam Madanagopal wrote:
>
>> Srini -
>>
>> This "text" datatype comes as sample configuration in SOLR distribution.
>> Check this, it may suit your need!
>>
>> <fieldType name="text" class="solr.TextField" positionIncrementGap="100"
>> autoGeneratePhraseQueries="true">
>> <analyzer type="index">
>> <tokenizer class="solr.WhitespaceTokenizerFactory"/>
>> <filter class="solr.StopFilterFactory"
>> ignoreCase="true"
>> words="stopwords.txt"
>> enablePositionIncrements="true"
>> />
>> <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1"
>> generateNumberParts="1" catenateWords="1" catenateNumbers="1"
>> catenateAll="0" splitOnCaseChange="1"/>
>> <filter class="solr.LowerCaseFilterFactory"/>
>> <filter class="solr.KeywordMarkerFilterFactory"
>> protected="protwords.txt"/>
>> <filter class="solr.PorterStemFilterFactory"/>
>> </analyzer>
>> <analyzer type="query">
>> <tokenizer class="solr.WhitespaceTokenizerFactory"/>
>> <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
>> ignoreCase="true" expand="true"/>
>> <filter class="solr.StopFilterFactory"
>> ignoreCase="true"
>> words="stopwords.txt"
>> enablePositionIncrements="true"
>> />
>> <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1"
>> generateNumberParts="1" catenateWords="0" catenateNumbers="0"
>> catenateAll="0" splitOnCaseChange="1"/>
>> <filter class="solr.LowerCaseFilterFactory"/>
>> <filter class="solr.KeywordMarkerFilterFactory"
>> protected="protwords.txt"/>
>> <filter class="solr.PorterStemFilterFactory"/>
>> </analyzer>
>> </fieldType>
>>
>>
>> -Jeevanandam
>>
>> On Apr 10, 2012, at 12:08 AM, Walter Underwood wrote:
>>
>>> You will need to define or customize a field type for text.
>>>
>>> The example schema.xml file that is installed with Solr 3.5 has a several
>>> kinds of text fields, "text_general" and "text_en" are good places to
>>> start. You can use one of those, then customize it.
>>>
>>> wunder
>>>
>>> On Apr 9, 2012, at 11:27 AM, srini wrote:
>>>
>>>> Hi Thanks for your reply. As per your suggestion I changed XML field type
>>>> to
>>>> text.
>>>>
>>>> <field name="XML" type="string" indexed="true" stored="true"
>>>> required="true"/>
>>>>
>>>> but when I start solr it is throwing following exception.
>>>> SEVERE: org.apache.solr.common.SolrException: Unknown fieldtype 'text'
>>>> specified on field XML
>>>>
>>>> Any suggestions!!(Thanks for your reply)
>>>>
>>>> --
>>>> View this message in context:
>>>> http://lucene.472066.n3.nabble.com/Solr-is-indexing-but-not-showing-results-tp3897176p3897626.html
>>>> Sent from the Solr - User mailing list archive at Nabble.com.
>>>
>
>
>
>
