Struct FieldDescriptor 

pub struct FieldDescriptor {
    pub number: u32,
    pub name: String,
    pub typ: ColumnType,
    pub mode: ColumnMode,
}

Metadata descriptor for a single field in a BigQuery table schema.

Contains the complete field definition including data type, cardinality mode, and protobuf field number required for BigQuery Storage Write API operations. Each field descriptor maps directly to a protobuf field descriptor in the generated schema.

Fields

number: u32

Unique field number starting from 1, incrementing for each field.

name: String

Name of the field as it appears in BigQuery.

typ: ColumnType

Data type of the field.

mode: ColumnMode

Cardinality mode of the field.

Trait Implementations

impl Clone for FieldDescriptor

fn clone(&self) -> FieldDescriptor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FieldDescriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.