>>> currently browsing the source code in src/include/tcop. What does tcop stand for? Can not find any hints in the files. > >>Traffic cop. > > Thanks > cop mean? A cop means a policeman. Probably the name came from that it is responsible for the traffic control between frontend and backend. Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp