Struct substrait_expr::builder::schema::NamesOnlySchemaNodeBuilder

pub struct NamesOnlySchemaNodeBuilder { /* private fields */ }

A builder object for a names-only schema

Implementations

impl NamesOnlySchemaNodeBuilder

pub fn new() -> Self

Create a new builder

pub fn new_with_types(registry: ExtensionsRegistry) -> Self

Create a new builder with the given type registry

This is an advanced case and only needed if you are trying to maintain type anchors.

pub fn field(self, name: impl Into<String>) -> Self

Add a new leaf field to the schema with the given name

pub fn nested( self, name: impl Into<String>, build_func: impl FnOnce(Self) -> Self ) -> Self

Add a new struct field to the schema with the given name

pub fn build(self) -> SchemaInfo

Consume the builder to create a schema