Struct deltalake::data_catalog::unity::datafusion::UnitySchemaProvider

pub struct UnitySchemaProvider { /* private fields */ }

A datafusion SchemaProvider backed by Databricks UnityCatalog

Implementations

impl UnitySchemaProvider

pub async fn try_new( client: Arc<UnityCatalog>, catalog_name: impl Into<String>, schema_name: impl Into<String>, storage_options: impl IntoIterator<Item = (impl Into<String>, impl Into<String>)> ) -> Result<UnitySchemaProvider, DataCatalogError>

Create a new instance of UnitySchemaProvider

Trait Implementations

impl SchemaProvider for UnitySchemaProvider

fn as_any(&self) -> &(dyn Any + 'static)

Returns this SchemaProvider as Any so that it can be downcast to a specific implementation.

fn table_names(&self) -> Vec<String>

Retrieves the list of available table names in this schema.

fn table<'life0, 'life1, 'async_trait>( &'life0 self, name: &'life1 str ) -> Pin<Box<dyn Future<Output = Result<Option<Arc<dyn TableProvider>>, DataFusionError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, UnitySchemaProvider: 'async_trait,

Retrieves a specific table from the schema by name, if it exists, otherwise returns None.

fn table_exist(&self, name: &str) -> bool

Returns true if table exist in the schema provider, false otherwise.

fn owner_name(&self) -> Option<&str>

Returns the owner of the Schema, default is None. This value is reported as part of `information_tables.schemata

fn register_table( &self, name: String, table: Arc<dyn TableProvider> ) -> Result<Option<Arc<dyn TableProvider>>, DataFusionError>

If supported by the implementation, adds a new table named name to this schema.

fn deregister_table( &self, name: &str ) -> Result<Option<Arc<dyn TableProvider>>, DataFusionError>

If supported by the implementation, removes the name table from this schema and returns the previously registered TableProvider, if any.