Common Operations# The contents of this section are designed to guide a new user through how to use DataFusion. Registering Views Basic Operations Column Selections Expressions Column Literal Boolean Arrays Lambda functions Testing membership in a list Conditional expressions Structs Functions Joins Inner Join Left Join Full Join Left Semi Join Left Anti Join Duplicate Keys Disambiguating Columns with DataFrame.col() Functions Mathematical Conditional Temporal String Casting Other Handling Missing Values fill_null Spark-Compatible Functions Why a Separate Namespace? DataFrame API SQL Function Reference Aggregation Setting Parameters Grouping Sets Aggregate Functions User-Defined Aggregate Functions Window Functions Setting Parameters Aggregate Functions Available Functions User-Defined Window Functions User-Defined Functions Scalar Functions Aggregate Functions Window Functions Table Functions