Explanation:Currently only the pushProjection() method is called by Pig to communicate to the loader the exact fields that are required in the Pig script. 3. Which of the following has methods to deal with metadata ?
A. LoadPushDown
B. LoadMetadata
C. LoadCaster
D. All of the mentioned
Answer:A
Explanation:Currently only the pushProjection() method is called by Pig to communicate to the loader the exact fields that are required in the Pig script. 3. Which of the following has methods to deal with metadata ?
A. LoadPushDown B. LoadMetadata C. LoadCaster D. All of the mentioned
Explanation:Most implementation of loaders don’t need to implement this unless they interact with some metadata system. 4. ____________ method will be called by Pig both in the front end and back end to pass a unique signature to the Loader.