Explanation:The implementation of Map takes HCatRecord as an input and the implementation of Reduce produces it as an output. 10. Which of the following Hive commands is not supported by HCatalog ?
A. ALTER INDEX … REBUILD
B. CREATE VIEW
C. SHOW FUNCTIONS
D. DROP TABLE
Answer:A
Explanation:The implementation of Map takes HCatRecord as an input and the implementation of Reduce produces it as an output. 10. Which of the following Hive commands is not supported by HCatalog ?
A. ALTER INDEX … REBUILD B. CREATE VIEW C. SHOW FUNCTIONS D. DROP TABLE
Explanation:Any command which is not supported throws an exception with the message “Operation Not Supported”. Sanfoundry Global Education & Learning Series – Hadoop.