fn make_schema_pivot_output_schema() -> DFSchemaRef {
    let nullable = false;
    Schema::new(vec![Field::new(
        "non_null_column",
        DataType::Utf8,
        nullable,
    )])
    .to_dfschema_ref()
    .unwrap()
}
/// Create the schema describing the output
Create the schema describing the output
Create the schema describing the output
fn make_schema_pivot_output_schema() -> DFSchemaRef {
    let nullable = false;
    Schema::new(vec![Field::new(
        "non_null_column",
        DataType::Utf8,
        nullable,
    )])
    .to_dfschema_ref()
    .unwrap()
}
fn make_schema_pivot_output_schema ( ) -> DFSchemaRef { let nullable = false ; Schema :: new ( vec ! [ Field new ( " " DataType Utf8 nullable ) ] ) . to_dfschema_ref ( ) . unwrap ( ) }
Create the schema describing the output
Create the schema describing the output