Struct DynamicFileCatalogProvider 

struct DynamicFileCatalogProvider {
    inner: Arc<dyn CatalogProvider>,
    factory: Arc<dyn UrlTableFactory>,
}

Wraps another catalog provider

Fields

inner: Arc<dyn CatalogProvider>

The inner catalog provider

factory: Arc<dyn UrlTableFactory>

The factory that can create a table provider from the file path

Implementations

impl DynamicFileCatalogProvider

pub fn new( inner: Arc<dyn CatalogProvider>, factory: Arc<dyn UrlTableFactory>, ) -> Self

Trait Implementations

impl CatalogProvider for DynamicFileCatalogProvider

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>>>

Adds a new schema to this catalog.

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

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 DynamicFileCatalogProvider

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

Formats the value using the given formatter.