Implement a unified SQL query interface based on modern SQL standard (SQL:2023) to access 90+ heterogeneous data sources. This should support modern SQL features like window functions, JSON processing, vector calculations, and AI integration scenarios to improve user experience and reduce integration complexity.
With the rapid development of big data processing, AI integration, and modern analytics scenarios, users need to use a unified SQL interface on Nexus-Gateway to access 90+ heterogeneous data sources. Current SQL processing mechanisms mainly support traditional SQL standards and lack support for modern SQL features (such as window functions, JSON processing, vector calculations, etc.) and AI integration scenarios. To improve user experience and reduce integration complexity, it is necessary to provide a unified SQL interface based on SQL:2023 standard that supports big data processing, AI integration and modern analytics needs. The heterogeneity of multiple data sources presents significant challenges: the SQL dialects and syntax differences between different data sources are enormous (such as function differences, type differences, syntax differences, etc.). A unified SQL syntax layer can effectively shield these complexities and provide users with a simple, consistent data access expe