Full Text Search in PostgreSQL

simple word count 

https://stackoverflow.com/questions/26380555/i-need-to-count-the-number-of-different-rows-a-word-appears-in

http://wiki.hsr.ch/Datenbanken/files/Full_Text_Search_in_PostgreSQL_Luetolf_Paper_Draft.pdf

http://www.postgresql.org/docs/9.4/static/textsearch-controls.html

http://java-talks.blogspot.com/2014/04/use-postgresql-full-text-search-with-hql.html


http://www.sai.msu.su/~megera/postgres/fts/doc/fts-vec.html



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https://stackoverflow.com/questions/12520375/how-to-query-values-with-wildcards-in-postgresql-hstore