Enum datafusion::datasource::datasource::TableProviderFilterPushDown

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pub enum TableProviderFilterPushDown {
    Unsupported,
    Inexact,
    Exact,
}

Expand description

Indicates whether and how a filter expression can be handled by a TableProvider for table scans.

Variants

`Unsupported`

The expression cannot be used by the provider.

`Inexact`

The expression can be used to help minimise the data retrieved, but the provider cannot guarantee that all returned tuples satisfy the filter. The Filter plan node containing this expression will be preserved.

`Exact`

The provider guarantees that all returned data satisfies this filter expression. The Filter plan node containing this expression will be removed.

Trait Implementations

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impl Clone for TableProviderFilterPushDown

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fn clone(&self) -> TableProviderFilterPushDown

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for TableProviderFilterPushDown

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

Formats the value using the given formatter. Read more

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impl PartialEq<TableProviderFilterPushDown> for TableProviderFilterPushDown

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fn eq(&self, other: &TableProviderFilterPushDown) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl StructuralPartialEq for TableProviderFilterPushDown

Auto Trait Implementations

impl RefUnwindSafe for TableProviderFilterPushDown

impl Send for TableProviderFilterPushDown

impl Sync for TableProviderFilterPushDown

impl Unpin for TableProviderFilterPushDown

impl UnwindSafe for TableProviderFilterPushDown

Blanket Implementations

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

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pub 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

pub 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

pub 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

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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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

pub 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

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

Performs the conversion.

Enum datafusion::datasource::datasource::TableProviderFilterPushDown

Variants

Unsupported

Inexact

Exact

Trait Implementations

impl Clone for TableProviderFilterPushDown

fn clone(&self) -> TableProviderFilterPushDown

fn clone_from(&mut self, source: &Self)

impl Debug for TableProviderFilterPushDown

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

impl PartialEq<TableProviderFilterPushDown> for TableProviderFilterPushDown

fn eq(&self, other: &TableProviderFilterPushDown) -> bool

fn ne(&self, other: &Rhs) -> bool

impl StructuralPartialEq for TableProviderFilterPushDown

Auto Trait Implementations

impl RefUnwindSafe for TableProviderFilterPushDown

impl Send for TableProviderFilterPushDown

impl Sync for TableProviderFilterPushDown

impl Unpin for TableProviderFilterPushDown

impl UnwindSafe for TableProviderFilterPushDown

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

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

type Error = Infallible

pub 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

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

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

pub fn vzip(self) -> V

`Unsupported`

`Inexact`

`Exact`

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> ToOwned for T where
T: Clone,

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>,