Struct PaimonSchemaProvider 

pub struct PaimonSchemaProvider { /* private fields */ }

Represents a SchemaProvider for the Paimon Catalog, managing access to table providers within a specific database.

Tables are loaded lazily when accessed via the table() method.

Implementations

impl PaimonSchemaProvider

pub fn new( catalog_name: Option<String>, catalog: Arc<dyn Catalog>, database: String, dynamic_options: Arc<RwLock<HashMap<String, String>>>, temp_provider: Option<Arc<MemorySchemaProvider>>, blob_reader_registry: BlobReaderRegistry, session_state: Option<Arc<dyn Fn() -> Option<SessionState> + Send + Sync>>, ) -> Self

Creates a new PaimonSchemaProvider.

Trait Implementations

impl Debug for PaimonSchemaProvider

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

Formats the value using the given formatter.

impl SchemaProvider for PaimonSchemaProvider

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 = DFResult<Option<Arc<dyn TableProvider>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

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

fn table_type<'life0, 'life1, 'async_trait>( &'life0 self, name: &'life1 str, ) -> Pin<Box<dyn Future<Output = DFResult<Option<TableType>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieves the type of a specific table from the schema by name, if it exists, otherwise returns None. Implementations for which this operation is cheap but Self::table is expensive can override this to improve operations that only need the type, e.g. SELECT * FROM information_schema.tables.

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

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

fn register_table( &self, _name: String, table: Arc<dyn TableProvider>, ) -> DFResult<Option<Arc<dyn TableProvider>>>

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

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

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

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