Struct LokiLogTable 

pub struct LokiLogTable {
    pub endpoint: String,
    pub default_label: Option<String>,
}

Fields

endpoint: String

default_label: Option<String>

Implementations

impl LokiLogTable

pub fn try_new(endpoint: impl Into<String>) -> DFResult<Self>

pub fn with_default_label(self, default_label: Option<String>) -> Self

pub async fn check_connection(&self) -> DFResult<()>

Trait Implementations

impl Debug for LokiLogTable

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

Formats the value using the given formatter.

impl TableProvider for LokiLogTable

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 table_type(&self) -> TableType

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

fn scan<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, _state: &'life1 dyn Session, projection: Option<&'life2 Vec<usize>>, filters: &'life3 [Expr], limit: Option<usize>, ) -> Pin<Box<dyn Future<Output = DFResult<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 supports_filters_pushdown( &self, filters: &[&Expr], ) -> DFResult<Vec<TableProviderFilterPushDown>>

Specify if DataFusion should provide filter expressions to the TableProvider to apply during the scan.

fn insert_into<'life0, 'life1, 'async_trait>( &'life0 self, _state: &'life1 dyn Session, input: Arc<dyn ExecutionPlan>, insert_op: InsertOp, ) -> Pin<Box<dyn Future<Output = DFResult<Arc<dyn ExecutionPlan>>> + Send + 'async_trait>>

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

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

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

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

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

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

fn get_logical_plan(&self) -> Option<Cow<'_, 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_with_args<'a, 'life0, 'life1, 'async_trait>( &'life0 self, state: &'life1 dyn Session, args: ScanArgs<'a>, ) -> Pin<Box<dyn Future<Output = Result<ScanResult, DataFusionError>> + Send + 'async_trait>>

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

Create an ExecutionPlan for scanning the table using structured arguments.

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

Get statistics for this table, if available Although not presently used in mainline DataFusion, this allows implementation specific behavior for downstream repositories, in conjunction with specialized optimizer rules to perform operations such as re-ordering of joins.