Function prepare_schema_for_flight

arrow-flight/src/encode.rs:651–663

Prepare an arrow Schema for transport over the Arrow Flight protocol Convert dictionary types to underlying types See hydrate_dictionary for more information

(
    schema: &Schema,
    dictionary_tracker: &mut DictionaryTracker,
    send_dictionaries: bool,
)

///
/// See hydrate_dictionary for more information
fn prepare_schema_for_flight(
    schema: &Schema,
    dictionary_tracker: &mut DictionaryTracker,
    send_dictionaries: bool,
) -> Schema {
    let fields: Fields = schema
        .fields()
        .iter()
        .map(|field| prepare_field_for_flight(field, dictionary_tracker, send_dictionaries))
        .collect();

    Schema::new(fields).with_metadata(schema.metadata().clone())
}

/// Split [`RecordBatch`] so it hopefully fits into a gRPC response.
///