Blog

Analyzers and Turkish: Tokenizers, Token Filters, the turkish Analyzer, ASCII Folding and Synonyms

Turkish search in Elasticsearch is not fixed by the built-in turkish analyzer as is: the apostrophe and Turkish lowercase filters help, but the Snowball stemmer reduces "İnce" to "i" and "kasaba" to "kasap"; the fix is keyword_marker, a sub-field without Turkish characters and querying several fields together. With real output: the analyzer chain, the stemmer's limits, Turkish sorting with ICU and the Synonyms API without reindexing.