(0,1), (0,1), (0,2), (1,2), (1,10), (1,20), (3,18), (3,18), (3,18)

1,2,18
1,10,18
2,20,18

>>> rdd = sc.parallelize([(0,1), (0,1), (0,2), (1,2), (1,10), (1,20), (3,18), (3,18), (3,18)])
>>> sqlContext.createDataFrame(rdd, ["id", "score"])
Out[2]: DataFrame[id: bigint, score: bigint]