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Type:
Improvement
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 4.0-ALPHA
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Fix Version/s: 4.0-ALPHA
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Component/s: Schema and Analysis
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Labels:None
Currently since LUCENE-2236, we can enable Similarity per-field, but in schema.xml there is only a 'global' factory
for the SimilarityProvider.
In my opinion this is too low-level because to customize Similarity on a per-field basis, you have to set your own
CustomSimilarityProvider with <similarity class=.../> and manage the per-field mapping yourself in java code.
Instead I think it would be better if you just specify the Similarity in the FieldType, like after <analyzer>.
As far as the example, one idea from LUCENE-1360 was to make a "short_text" or "metadata_text" used by the
various metadata fields in the example that has better norm quantization for its shortness...
- depends upon
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LUCENE-2986 divorce defaultsimilarityprovider from defaultsimilarity
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- Closed
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- relates to
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SOLR-2600 ensure example schema.xml has some mention/explanation of per field similarity vs similarityprovider vs (global) similarity
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- Closed
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