Struct datafusion_federation::FederatedTableProviderAdaptor

pub struct FederatedTableProviderAdaptor {
    pub source: Arc<dyn FederatedTableSource>,
}

Fields

source: Arc<dyn FederatedTableSource>

Implementations

impl FederatedTableProviderAdaptor

pub fn new(source: Arc<dyn FederatedTableSource>) -> Self

Trait Implementations

impl TableProvider for FederatedTableProviderAdaptor

fn as_any(&self) -> &dyn Any

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

fn schema(&self) -> SchemaRef

Get a reference to the schema for this table

fn constraints(&self) -> Option<&Constraints>

Get a reference to the constraints of the table. Returns:

fn table_type(&self) -> TableType

Get the type of this table for metadata/catalog purposes.

fn get_logical_plan(&self) -> Option<&LogicalPlan>

Get the [LogicalPlan] of this table, if available

fn get_column_default(&self, column: &str) -> Option<&Expr>

Get the default value for a column, if available.

fn scan<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, _state: &'life1 SessionState, _projection: Option<&'life2 Vec<usize>>, _filters: &'life3 [Expr], _limit: Option<usize> ) -> Pin<Box<dyn Future<Output = Result<Arc<dyn ExecutionPlan>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Create an [ExecutionPlan] for scanning the table with optionally specified projection, filter and limit, described below.

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

Get the create statement used to create this table, if available.

fn supports_filter_pushdown( &self, _filter: &Expr ) -> Result<TableProviderFilterPushDown, DataFusionError>

👎Deprecated since 20.0.0: use supports_filters_pushdown instead

Tests whether the table provider can make use of a filter expression to optimise data retrieval.

fn supports_filters_pushdown( &self, filters: &[&Expr] ) -> Result<Vec<TableProviderFilterPushDown>, DataFusionError>

Tests whether the table provider can make use of any or all filter expressions to optimise data retrieval.

fn statistics(&self) -> Option<Statistics>

Get statistics for this table, if available

fn insert_into<'life0, 'life1, 'async_trait>( &'life0 self, _state: &'life1 SessionState, _input: Arc<dyn ExecutionPlan>, _overwrite: bool ) -> Pin<Box<dyn Future<Output = Result<Arc<dyn ExecutionPlan>, DataFusionError>> + Send + 'async_trait>>

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

Return an [ExecutionPlan] to insert data into this table, if supported.