ReferenceSQLFunctionsOverviewVersion: NightlyOn this pageFunctions Use this page as a quick index to GreptimeDB function references. Function References DataFusion Functions GreptimeDB Functions Core Functions (string, math, date/time, system, admin) Geospatial Functions IP Functions JSON Functions Vector Functions Approximate Functions Anomaly Detection Functions AI Functions (experimental) ai_match — natural-language matching probability ai_choose — classification ai_score — rating and confidence