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https://issues.apache.org/jira/browse/SOLR-3553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Bowyer updated SOLR-3553:
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Attachment: (was: SOLR-3553-Inheritable-schema-elements.patch)
> Make solr Plugins (FieldType, Analyser etc) be inheritable
> ----------------------------------------------------------
>
> Key: SOLR-3553
> URL: https://issues.apache.org/jira/browse/SOLR-3553
> Project: Solr
> Issue Type: New Feature
> Affects Versions: 4.0
> Reporter: Greg Bowyer
> Attachments: SOLR-3553-Inheritable-schema-elements.patch
>
>
> During defining an experimental schema for trialling all the combinations of
> scoring models for lucene 4 it struck me how much duplication is involved in
> the schema xml
> Using the current schema I am working with as an example,
> {code:xml}
> <fieldType name="text" class="solr.TextField"
> positionIncrementGap="100"
> autoGeneratePhraseQueries="true">
> <analyzer type="index">
> <tokenizer class="solr.WhitespaceTokenizerFactory"/>
>
> <filter class="solr.TrimFilterFactory"/>
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.WordDelimiterFilterFactory"
> generateWordParts="1" generateNumberParts="1"
> catenateWords="0" catenateNumbers="1" catenateAll="0"
> splitOnCaseChange="1" splitOnNumerics="0"
> stemEnglishPossesive="0" preserveOriginal="0" />
> <filter class="solr.ASCIIFoldingFilterFactory"/>
> <filter class="solr.StopFilterFactory"
> ignoreCase="true" words="stopwords.txt"
> enablePositionIncrements="true" />
>
> ... And so on
> {code}
> What I would like to be able to say is
> {code:xml}
> <fieldType name="text_bm25" parent="text">
> <similarity class="solr.BM25SimilarityFactory">
> <float name="k1">1.2</float>
> <float name="b">0.76</float>
> </similarity>
> </fieldType>
> {code}
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