Partitioning
Partitioning is dividing large tables into smaller, more manageable pieces based on a column's values.
Why Partition?
- Performance: Queries can skip scanning irrelevant partitions (Partition Pruning).
- Manageability: Easier to archive or drop old data.
- ETL Efficiency: Allows overriding a specific partition (e.g., re-running yesterday's data).
Our Strategy
We partition our Bronze and Silver data lakes by Date (year/month/day). This aligns perfectly with our daily incremental batch processing.