[ http://issues.apache.org/jira/browse/JCR-106?page=history ]
Marcel Reutegger reassigned JCR-106:
------------------------------------
Assign To: Marcel Reutegger
> Minimize use of fields in lucene index
> --------------------------------------
>
> Key: JCR-106
> URL: http://issues.apache.org/jira/browse/JCR-106
> Project: Jackrabbit
> Type: Improvement
> Components: query
> Environment: svn revision: 161184
> Reporter: Marcel Reutegger
> Assignee: Marcel Reutegger
> Priority: Minor
>
> Currently every property name creates a field in the lucene index, bloating
> the size of the index because of the norm files created for each field.
> When values are indexed as is (not tokenized for fulltext indexing), then the
> property name may be part of the term text. That way lucene must only
> maintain one field for all property names. With this approach the search
> terms are always a combination of property name and literal value. e.g.
> instead of using TermQuery(new Term("prop", "foo")) the query must be
> TermQuery(new TermQuery("common-field", "prop:foo")). this works for general
> comparison / value comparison operators and also for the like function. the
> contains function uses the fulltext index which uses a different field anyway.
> Using the property name as part of the indexed term text, requires a custom
> SortComparator which is aware of the property name.
> This change will not be backward compatible with earlier indexes created by
> jackrabbit.
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