Structs

A named reference to a qualified field in a schema.

DFField wraps an Arrow field and adds an optional qualifier

DFSchema wraps an Arrow schema and adds relation names

Enums

DataFusion error

Represents a dynamically typed, nullable single value. This is the single-valued counter-part of arrow’s Array.

Constants

The max precision and scale for decimal128

Traits

Provides schema information needed by certain methods of Expr (defined in the datafusion-common crate).

Trait used to map a NativeTime to a ScalarType.

Convenience trait to convert Schema like things to DFSchema and DFSchemaRef with fewer keystrokes

Type Definitions

A reference-counted reference to a DFSchema.

Result type for operations that could result in an DataFusionError