I need to use "_" as a word breaker for full text search. Setting the language as Korean does what I need:
SELECT * FROM sys.dm_fts_parser ('Happy_Hour',1042,0,0)
When I put "'Happy_Hour' inside a txt file and have a column FileStream for this file content, setting Korean as Language-Word-Breaker doesn't work for FullText Search indexing on the FileStream column. I was using
sys.dm_fts_index_keywords_position_by_document to check the indexed keywords, only "Happy_Hour" is indexed.