Explain the concept of Data Partitioning.
Explain the concept of Data Partitioning.
Approach: Describe logical division of large datasets.
The technique of dividing a large dataset into smaller, manageable parts based on a specific column (e.g., date). It allows the execution engine to skip irrelevant data during queries (partition pruning).
Follow-up: What happens if you over-partition data?
Key concepts: pruning, file organization.