Struct DatabaseSchemaProvider

pub struct DatabaseSchemaProvider<T, P> { /* private fields */ }

Implementations

impl<T, P: 'static> DatabaseSchemaProvider<T, P>

pub async fn try_new( name: String, pool: Arc<dyn DbConnectionPool<T, P> + Send + Sync>, ) -> Result<Self, Box<dyn Error + Send + Sync>>

Trait Implementations

impl<T, P> Debug for DatabaseSchemaProvider<T, P>

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

Formats the value using the given formatter.

impl<T: 'static, P: 'static> SchemaProvider for DatabaseSchemaProvider<T, P>

fn as_any(&self) -> &dyn Any

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, table: &'life1 str, ) -> Pin<Box<dyn Future<Output = DataFusionResult<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_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.