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Discuss the considerations and strategies for choosing the right partitioning columns in a large dataset. How do these choices impact both storage and query performance?
A
Choose partitioning columns based on the most frequently used filters in queries, which can significantly reduce the amount of data scanned and improve query performance.
B
Choose partitioning columns randomly to ensure a balanced distribution of data across partitions, which can help in evenly utilizing storage resources.
C
Avoid partitioning columns that have high cardinality, as this can lead to too many small partitions, causing inefficiencies in storage and query processing.
D
Partition columns should be based on the largest columns in the dataset to minimize the storage footprint.
