In composite models, any query can be executed on the remote model (wholesale execution) or by mixing local and remote engines together (retail execution).
Introducing wholesale and retail execution in composite models - SQLBI
Optimization - SQLBI
Understanding the interactions between composite models and calculation groups - SQLBI
Composite models - SQLBI
SQLBI Newsletter #207
SQLBI+
Understanding the interactions between composite models and calculation groups - SQLBI
Jeffrey WangによるDAXクエリのベストプラクティス - テクテク日記
Wholesale and retail execution in composite models
Use composite models in Power BI Desktop - Power BI
SQLBI Newsletter #206
Tabular – SQLBI
New composite models in Power BI: A milestone in Business Intelligence - SQLBI
Understanding the interactions between composite models and calculation groups
Jeffrey WangによるDAXクエリのベストプラクティス - テクテク日記