Struct Schema 

pub struct Schema {
    pub fields: Vec<Field>,
    pub metadata: BTreeMap<String, String>,
}

Schema

Schema struct supporting RecordBatch construction for Arrow FFI compatibility only.

Usage

• In Minarrow, prefer FieldArray for typical use, as it holds Field directly.
• This type usage resides in the FFI module. A dedicated schema abstraction is otherwise not utilised within this crate, as the same field definitions are embedded within the Table structure, to avoid layered indirection.
• You can construct it manually for custom FFI scenarios: see examples/apache_arrow_ffi.

Fields

fields: Vec<Field>

metadata: BTreeMap<String, String>

Implementations

impl Schema

pub fn new(fields: Vec<Field>, metadata: BTreeMap<String, String>) -> Schema

Trait Implementations

impl Clone for Schema

fn clone(&self) -> Schema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Schema

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

Formats the value using the given formatter.

impl Default for Schema

fn default() -> Schema

Returns the “default value” for a type.

impl From<Vec<Field>> for Schema

fn from(fields: Vec<Field>) -> Schema

Converts to this type from the input type.

impl PartialEq for Schema

fn eq(&self, other: &Schema) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Schema