Intermediate
Big Data & Data Engineering
Q53 / 100
What is a key benefit of columnar formats like Parquet for analytical queries?
Correct! Well done.
Incorrect.
The correct answer is A) Queries can read only the needed columns and benefit from better compression due to similar data types stored together
A
Correct Answer
Queries can read only the needed columns and benefit from better compression due to similar data types stored together
Explanation
Storing values column-by-column means analytical queries that touch few columns read less data, and similar values compress better than row-oriented storage.
Progress
53/100