title: Zen description: Various topics by Oleg Bartunov. link: http://www.sai.msu.su/~megera/wiki/relation_featur%E5s/DB/GiST/GiST_internals/Gin/GiST_Concurrency_Recovery/Pgsql/Tsearch2/Tsearch2_83_changes generator: Oddmuse