Microsoft Hive Connector

Hi Apostolis_Pla - The Hive connector may not fully support the incremental refresh feature. Power BI's incremental refresh is primarily designed for SQL-based data sources, and Hive might not have the required query folding capabilities.If the Hive connector doesn't support query folding, incremental refresh cannot be enabled.

reference links:

Chris Webb's BI Blog: Keep The Existing Data In Your Power BI Dataset And Add New Data To It Using Incremental Refresh (crossjoin.co.uk)

Incremental refresh for semantic models in Power BI - Power BI | Microsoft Learn

Advanced incremental refresh and real-time data with the XMLA endpoint in Power BI - Power BI | Microsoft Learn

Dataflows best practices - Power BI | Microsoft Learn

Hope this helps.