Explanation:The RecordReader can then be used by the implementation in getNext() to return a tuple representing a record of data back to pig. 9. __________ method tells LoadFunc which fields are required in the Pig script.
A. pushProjection()
B. relativeToAbsolutePath()
C. prepareToRead()
D. None of the mentioned
Answer:A
Explanation:The RecordReader can then be used by the implementation in getNext() to return a tuple representing a record of data back to pig. 9. __________ method tells LoadFunc which fields are required in the Pig script.
A. pushProjection() B. relativeToAbsolutePath() C. prepareToRead() D. None of the mentioned
Explanation: Pig will use the column index requiredField.index to communicate with the LoadFunc about the fields required by the Pig script. 10.A loader implementation should implement __________ if casts (implicit or explicit) from DataByteArray fields to other types need to be supported.