split by 对集合 foo.bar 按字段c拆分。 > db.exec( "select a,b,c from foo.bar split by c" ){ "a": 1, "b": 2, "c": 3 }{ "a": 1, "b": 2, "c": 4 }{ "a": 2, "b": 3, "c": 6 }{ "a": 2, "b": 3, "c": 7 }Return 5 row(s).Takes 0.5281s.