Struct datafusion::datasource::default_table_source::DefaultTableSource

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pub struct DefaultTableSource {
    pub table_provider: Arc<dyn TableProvider>,
}

Expand description

DataFusion default table source, wrapping TableProvider

This structure adapts a TableProvider (physical plan trait) to the TableSource (logical plan trait)

Fields

table_provider: Arc<dyn TableProvider>

table provider

Implementations

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impl DefaultTableSource

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pub fn new(table_provider: Arc<dyn TableProvider>) -> Self

Create a new DefaultTableSource to wrap a TableProvider

Trait Implementations

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impl TableSource for DefaultTableSource

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fn as_any(&self) -> &dyn Any

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

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fn schema(&self) -> SchemaRef

Get a reference to the schema for this table

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

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

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fn table_type(&self) -> TableType

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

Auto Trait Implementations

impl !RefUnwindSafe for DefaultTableSource

impl Send for DefaultTableSource

impl Sync for DefaultTableSource

impl Unpin for DefaultTableSource

impl !UnwindSafe for DefaultTableSource

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct datafusion::datasource::default_table_source::DefaultTableSource

Fields

Implementations

impl DefaultTableSource

pub fn new(table_provider: Arc<dyn TableProvider>) -> Self

Trait Implementations

impl TableSource for DefaultTableSource

fn as_any(&self) -> &dyn Any

fn schema(&self) -> SchemaRef

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

fn table_type(&self) -> TableType

Auto Trait Implementations

impl !RefUnwindSafe for DefaultTableSource

impl Send for DefaultTableSource

impl Sync for DefaultTableSource

impl Unpin for DefaultTableSource

impl !UnwindSafe for DefaultTableSource

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V

Struct datafusion::datasource::default_table_source::DefaultTableSource

Fields

Implementations

impl DefaultTableSource

pub fn new(table_provider: Arc<dyn TableProvider>) -> Self

Trait Implementations

impl TableSource for DefaultTableSource

fn as_any(&self) -> &dyn Any

fn schema(&self) -> SchemaRef

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

fn table_type(&self) -> TableType

Auto Trait Implementations

impl !RefUnwindSafe for DefaultTableSource

impl Send for DefaultTableSource

impl Sync for DefaultTableSource

impl Unpin for DefaultTableSource

impl !UnwindSafe for DefaultTableSource

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,