Struct TableSchema 

pub struct TableSchema { /* private fields */ }

The schema of a catalog table: an ordered list of fields.

Implementations

impl TableSchema

pub fn new(fields: Vec<CatalogField>) -> Self

Create a new schema from a list of fields.

pub fn empty() -> Self

Create an empty schema with no fields.

pub fn to_arrow_schema(&self) -> Schema

Convert to an Arrow Schema.

pub fn field_count(&self) -> usize

Return the number of fields in this schema.

pub fn get_field(&self, name: &str) -> Option<&CatalogField>

Look up a field by name.

Trait Implementations

impl Clone for TableSchema

fn clone(&self) -> TableSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableSchema

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

Formats the value using the given formatter.

impl Eq for TableSchema

impl PartialEq for TableSchema

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TableSchema