A Power BI user conducted a performance comparison of Import, DirectQuery, and Direct Lake storage modes using the same dataset. The tests revealed significant performance differences, with one mode running in under a second and another taking fourteen seconds. A critical finding was that Direct Lake mode silently switched to another mode when a row-level security role was added, posing a potential production risk. AI
Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →
IMPACT Provides insights into optimizing data model performance and identifying potential risks within a widely used business intelligence tool.
RANK_REASON The cluster details a technical comparison and performance testing of different modes within a specific software product, which constitutes research. [lever_c_demoted from research: ic=1 ai=0.4]
