elasticsearch/elasticsearch — pull request #1501 by bandito (2011-11-27 08:57:00+00:00)
Title: Support for greek stemming (GreekStemFilter)

While the GreekAnalyzer supports stemming, custom analyzers for the greek language cannot be build because there is no GreekStemmer (although lucene has one).

That still doesn't solve the problem since the GreekLowerCaseFilter is missing. It would be nice if there was a way to access tokenizers or filters that are present in Lucene but not supported by ES.