[ http://issues.apache.org/jira/browse/JCR-106?page=history ]
Marcel Reutegger resolved JCR-106:
----------------------------------
Resolution: Fixed
Changed implementation for indexing as described.
Note again, that this change is not backward compatible with former indexes
created by Jackrabbit. You have to delete the index directory in your workspace
and let Jackrabbit re-index the nodes at startup (this is done automatically,
when the index directory is missing).
svn revision: 161425
> 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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