Niclas Hedhman a écrit :
On Tue, Oct 2, 2012 at 5:08 PM, Paul Merlin<[email protected]> wrote:
ElasticSearch will support regex filtering when lucene 4 will be out
(currently at BETA stage).
Well, my observation is that RegExp search is not easily done in SQL
either, so perhaps we should not demand that of the Query/Indexing
engine...
On the other side, it's possible to support RegExp search on several
engines. About SQL, many RDBMS support the REGEXP query operator or
other mecanisms. I think we should delegate RegExp search as much as we
can to the underlying engine.
indexing-rdf and indexing-sql currently support MatchesSpecification.
Plus, and after thinking a bit more about it, doing it as a post-filter
will be extremely complex/slow as the MatchesSpecification could be
nested in a complex Query. In fact I simply don't see how to do it out
of the underlying engine except by doing many queries and "manual"
filtering along the way, solution that I don't see as viable.
indexing-solr is out of the discussion as it do not support the Query
API at all.
/Paul
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