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.
A. LoadPushDown
B. LoadMetadata
C. LoadCaster
D. All of the mentioned
Answer:A
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.
A. LoadPushDown B. LoadMetadata C. LoadCaster D. All of the mentioned
Explanation:LoadCaster has methods to convert byte arrays to specific types. Sanfoundry Global Education & Learning Series – Hadoop.