実行例 ::

  > select --table Blog1 --match_columns title||message --query groonga
  [[0,1294292408.31388,0.000823528],[[[3],[["_id","UInt32"],["_key","ShortText"],["title","ShortText"],["message","ShortText"]],[1,"grn1","groonga test","groonga message"],[3,"grn3","groonga message","none"],[2,"grn2","baseball result","rakutan eggs 4 - 4 groonga moritars"]]]]
  > select --table Blog1 --match_columns title||message --query message
  [[0,1294292408.5178,0.000566064],[[[2],[["_id","UInt32"],["_key","ShortText"],["title","ShortText"],["message","ShortText"]],[3,"grn3","groonga message","none"],[1,"grn1","groonga test","groonga message"]]]]
  > select --table Blog1 --match_columns title --query message
  [[0,1294292408.72074,0.0004798],[[[1],[["_id","UInt32"],["_key","ShortText"],["title","ShortText"],["message","ShortText"]],[3,"grn3","groonga message","none"]]]]
  