Enum datafusion_expr::TableProviderFilterPushDown

source · [−]

pub enum TableProviderFilterPushDown {
    Unsupported,
    Inexact,
    Exact,
}

Expand description

! Table source 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

source

impl Clone for TableProviderFilterPushDown

source

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

source

impl Debug for TableProviderFilterPushDown

source

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

Formats the value using the given formatter. Read more

source

impl PartialEq<TableProviderFilterPushDown> for TableProviderFilterPushDown

source

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 !=.

source

impl Eq for TableProviderFilterPushDown

source

impl StructuralEq for TableProviderFilterPushDown

source

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

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

source

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

source

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

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.

source

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

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

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

source

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

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

source

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.

source

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.

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

fn vzip(self) -> V

source

Enum datafusion_expr::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 Eq for TableProviderFilterPushDown

impl StructuralEq for TableProviderFilterPushDown

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,

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<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

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> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut 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

impl<T> Allocation for T where T: RefUnwindSafe + Send + Sync,

`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<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?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>,

impl<T> Allocation for T where
T: RefUnwindSafe + Send + Sync,