Murali Krishna P created LUCENE-8601:
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Summary: Adding attributes to IndexFieldType
Key: LUCENE-8601
URL: https://issues.apache.org/jira/browse/LUCENE-8601
Project: Lucene - Core
Issue Type: Improvement
Components: core/index
Affects Versions: 7.5
Reporter: Murali Krishna P
Today, we can write a custom Field using custom IndexFieldType, but when the
DefaultIndexingChain converts [IndexFieldType to
FieldInfo|https://github.com/apache/lucene-solr/blob/master/lucene/core/src/java/org/apache/lucene/index/DefaultIndexingChain.java#L662],
only few key informations such as indexing options and doc value type are
retained. The [Codec gets the
FieldInfo|https://github.com/apache/lucene-solr/blob/master/lucene/core/src/java/org/apache/lucene/codecs/DocValuesConsumer.java#L90],
but not the type details.
FieldInfo has support for[
'attributes'|https://github.com/apache/lucene-solr/blob/master/lucene/core/src/java/org/apache/lucene/index/FieldInfo.java#L47]
and it would be great if we can add 'attributes' to IndexFieldType also and
copy it to FieldInfo's 'attribute'.
This would allow someone to write a custom codec (extending docvalueformat for
example) for only the 'special field' that he wants and delegate the rest of
the fields to the default codec.
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