- Model size optimization means reducing the memory footprint of the data model to improve performance.
- It involves removing unnecessary columns and unused tables.
- In one project, I removed 15 unused columns from a fact table to reduce size.
- I also changed data types from Text to Whole Number where possible.
- High-cardinality text fields were avoided unless required for reporting.
- Calculated columns were replaced with measures when possible to save storage.
- Optimizing model size improves refresh time, report speed, and overall scalability.
What is model size optimization?
Updated on February 23, 2026
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