SQL expressions in Grafana: Combine and manipulate data from multiple sources

Grafana's SQL expressions feature enhances its ability to provide a unified monitoring experience by allowing users to manipulate and combine data from various sources, such as Prometheus, MySQL, and Google Sheets, as if they were part of a single MySQL database. This feature, available in public preview across Grafana OSS, Enterprise, and Cloud, is versatile in its applications, enabling users to perform complex data analyses, generate alerts, and visualize trends without the need for a data warehouse. Additionally, with the integration of the Grafana LLM plugin, users can write SQL queries using natural language, receive AI-powered query assistance, and improve their SQL expressions' performance and reliability. The feature is powered by go-mysql-server from Dolthub, aligning with Grafana's technical stack, and plans for future enhancements include supporting more data sources and extending SQL expressions with custom functions.

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