Serialization of string columns uses a ________ to form unique column values.
A. Footer
B. STRIPES
C. Dictionary
D. Index
Answer:A
Serialization of string columns uses a ________ to form unique column values.
A. Footer B. STRIPES C. Dictionary D. Index
Explanation:The dictionary is sorted to speed up predicate filtering and improve compression ratios. 2. Point out the correct statement :