Struct UnityCatalogProvider 

pub struct UnityCatalogProvider {
    pub schemas: DashMap<String, Arc<dyn SchemaProvider>>,
}

A datafusion CatalogProvider backed by Databricks UnityCatalog

Fields

schemas: DashMap<String, Arc<dyn SchemaProvider>>

Parent catalog for schemas of interest.

Implementations

impl UnityCatalogProvider

pub async fn try_new( client: Arc<UnityCatalog>, catalog_name: impl Into<String>, ) -> DataCatalogResult<Self>

Create a new instance of UnityCatalogProvider

Trait Implementations

impl CatalogProvider for UnityCatalogProvider

fn as_any(&self) -> &dyn Any

Returns the catalog provider as Any so that it can be downcast to a specific implementation.

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

Retrieves the list of available schema names in this catalog.

fn schema(&self, name: &str) -> Option<Arc<dyn SchemaProvider>>

Retrieves a specific schema from the catalog by name, provided it exists.

fn register_schema( &self, name: &str, schema: Arc<dyn SchemaProvider>, ) -> Result<Option<Arc<dyn SchemaProvider>>, DataFusionError>

Adds a new schema to this catalog.

fn deregister_schema( &self, _name: &str, _cascade: bool, ) -> Result<Option<Arc<dyn SchemaProvider>>, DataFusionError>

Removes a schema from this catalog. Implementations of this method should return errors if the schema exists but cannot be dropped. For example, in DataFusion’s default in-memory catalog, MemoryCatalogProvider, a non-empty schema will only be successfully dropped when cascade is true. This is equivalent to how DROP SCHEMA works in PostgreSQL.

impl Debug for UnityCatalogProvider

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

Formats the value using the given formatter.