Struct tc_table::Merged

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pub struct Merged<F, D, Txn> { /* private fields */ }

Expand description

A merge of multiple table indexes

Implementations

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impl<F: File<Node>, D: Dir, Txn: Transaction<D>> Merged<F, D, Txn>

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pub fn new(
left: MergeSource<F, D, Txn>,
right: IndexSlice<F, D, Txn>
) -> TCResult<Self>

Create a new merge of the given IndexSlice with the given MergeSource.

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pub async fn slice_rows<'a>(
 self,
 txn_id: TxnId,
 bounds: Bounds,
 reverse: bool
) -> TCResult<TCBoxTryStream<'a, Vec<Value>>>

Stream the rows within the given Bounds of this merge

Trait Implementations

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impl<F: Clone, D: Clone, Txn: Clone> Clone for Merged<F, D, Txn>

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fn clone(&self) -> Merged<F, D, Txn>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<F, D, Txn> From<Merged<F, D, Txn>> for Table<F, D, Txn>

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fn from(merged: Merged<F, D, Txn>) -> Self

Performs the conversion.

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impl<F, D, Txn> Instance for Merged<F, D, Txn> where
Self: Send + Sync,

type Class = TableType

The Class type of this instance

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fn class(&self) -> Self::Class

Returns the [Class] of this instance.

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impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableInstance for Merged<F, D, Txn>

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fn key(&self) -> &[Column ]

Return the schema of this Table’s key.

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fn values(&self) -> &[Column ]

Return the schema of this Table’s values.

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fn schema(&self) -> TableSchema

Return the schema of this Table.

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impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableOrder for Merged<F, D, Txn>

type OrderBy = Self

The type of Table returned by this instance’s order_by method.

type Reverse = Self

The type of Table returned by this instance’s reversed method.

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fn order_by(self, columns: Vec<Id>, reverse: bool) -> TCResult<Self::OrderBy>

Return an ordered view of this table.

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fn reverse(self) -> TCResult<Self::Reverse>

Reverse the order returned by rows.

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fn validate_order(&self, order: &[Id ]) -> TCResult<()>

Return an error if this table does not support ordering by the given columns.

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impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableSlice for Merged<F, D, Txn>

type Slice = Self

The type of Table returned by this instance’s slice method.

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fn slice(self, bounds: Bounds) -> TCResult<Self::Slice>

Limit the returned rows to the given Bounds.

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fn validate_bounds(&self, bounds: &Bounds) -> TCResult<()>

Return an error if this table does not support the given Bounds.

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impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableStream for Merged<F, D, Txn>

type Limit = Limited<F, D, Txn>

type Selection = Selection<F, D, Txn, Self>

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fn limit(self, limit: u64) -> Self::Limit

Limit the number of rows returned by rows.

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fn select(self, columns: Vec<Id>) -> TCResult<Self::Selection>

Limit the columns returned by rows.

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fn rows<'a, 'async_trait>(
 self,
 txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<TCBoxTryStream<'a, Vec<Value>>>> + Send + 'async_trait>> where
 'a: 'async_trait,
 Self: 'async_trait,

Return a stream of the rows in this Table.

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fn count<'async_trait>(
 self,
 txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<u64>> + Send + 'async_trait>> where
 Self: Send + 'async_trait,

Return the number of rows in this Table.

Auto Trait Implementations

impl<F, D, Txn> RefUnwindSafe for Merged<F, D, Txn> where
 D: RefUnwindSafe,
 F: RefUnwindSafe,
 Txn: RefUnwindSafe,

impl<F, D, Txn> Send for Merged<F, D, Txn> where
 D: Send + Sync,
 F: Send + Sync,
 Txn: Send + Sync,

impl<F, D, Txn> Sync for Merged<F, D, Txn> where
 D: Send + Sync,
 F: Send + Sync,
 Txn: Send + Sync,

impl<F, D, Txn> Unpin for Merged<F, D, Txn>

impl<F, D, Txn> UnwindSafe for Merged<F, D, Txn> where
 D: RefUnwindSafe,
 F: RefUnwindSafe,
 Txn: RefUnwindSafe,

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<F, T> CastFrom<F> for T where
T: From<F>,

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pub fn cast_from(f: F) -> T

Cast an instance of T into an instance of Self.

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impl<T, F> CastInto<F> for T where
F: CastFrom<T>,

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pub fn cast_into(self) -> F

Cast an instance of Self into an instance of T.

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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<F> Match for F

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fn matches<T>(&self) -> bool where
T: TryCastFrom<Self>,

Returns true if self can be cast into the target type T.

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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<F, T> TryCastFrom<F> for T where
T: CastFrom<F>,

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pub fn can_cast_from(&F) -> bool

Test if value can be cast into Self.

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pub fn opt_cast_from(f: F) -> Option<T>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

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fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

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impl<F, T> TryCastInto<T> for F where
T: TryCastFrom<F>,

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pub fn can_cast_into(&self) -> bool

Test if self can be cast into T.

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pub fn opt_cast_into(self) -> Option<T>

Returns Some(T) if self can be cast into T, otherwise None.

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fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,

Returns Ok(T) if self can be cast into T, otherwise calls on_err.

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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.

Struct tc_table::Merged

Implementations

impl<F: File<Node>, D: Dir, Txn: Transaction<D>> Merged<F, D, Txn>

pub fn new( left: MergeSource<F, D, Txn>, right: IndexSlice<F, D, Txn>) -> TCResult<Self>

pub async fn slice_rows<'a>( self, txn_id: TxnId, bounds: Bounds, reverse: bool) -> TCResult<TCBoxTryStream<'a, Vec<Value>>>

Trait Implementations

impl<F: Clone, D: Clone, Txn: Clone> Clone for Merged<F, D, Txn>

fn clone(&self) -> Merged<F, D, Txn>

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

impl<F, D, Txn> From<Merged<F, D, Txn>> for Table<F, D, Txn>

fn from(merged: Merged<F, D, Txn>) -> Self

impl<F, D, Txn> Instance for Merged<F, D, Txn> where Self: Send + Sync,

type Class = TableType

fn class(&self) -> Self::Class

impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableInstance for Merged<F, D, Txn>

fn key(&self) -> &[Column]

fn values(&self) -> &[Column]

fn schema(&self) -> TableSchema

impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableOrder for Merged<F, D, Txn>

type OrderBy = Self

type Reverse = Self

fn order_by(self, columns: Vec<Id>, reverse: bool) -> TCResult<Self::OrderBy>

fn reverse(self) -> TCResult<Self::Reverse>

fn validate_order(&self, order: &[Id]) -> TCResult<()>

impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableSlice for Merged<F, D, Txn>

type Slice = Self

fn slice(self, bounds: Bounds) -> TCResult<Self::Slice>

fn validate_bounds(&self, bounds: &Bounds) -> TCResult<()>

impl<F: File<Node>, D: Dir, Txn: Transaction<D>> TableStream for Merged<F, D, Txn>

type Limit = Limited<F, D, Txn>

type Selection = Selection<F, D, Txn, Self>

fn limit(self, limit: u64) -> Self::Limit

fn select(self, columns: Vec<Id>) -> TCResult<Self::Selection>

fn rows<'a, 'async_trait>( self, txn_id: TxnId) -> Pin<Box<dyn Future<Output = TCResult<TCBoxTryStream<'a, Vec<Value>>>> + Send + 'async_trait>> where 'a: 'async_trait, Self: 'async_trait,

fn count<'async_trait>( self, txn_id: TxnId) -> Pin<Box<dyn Future<Output = TCResult<u64>> + Send + 'async_trait>> where Self: Send + 'async_trait,

Auto Trait Implementations

impl<F, D, Txn> RefUnwindSafe for Merged<F, D, Txn> where D: RefUnwindSafe, F: RefUnwindSafe, Txn: RefUnwindSafe,

impl<F, D, Txn> Send for Merged<F, D, Txn> where D: Send + Sync, F: Send + Sync, Txn: Send + Sync,

impl<F, D, Txn> Sync for Merged<F, D, Txn> where D: Send + Sync, F: Send + Sync, Txn: Send + Sync,

impl<F, D, Txn> Unpin for Merged<F, D, Txn>

impl<F, D, Txn> UnwindSafe for Merged<F, D, Txn> where D: RefUnwindSafe, F: RefUnwindSafe, Txn: RefUnwindSafe,

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<F, T> CastFrom<F> for T where T: From<F>,

pub fn cast_from(f: F) -> T

impl<T, F> CastInto<F> for T where F: CastFrom<T>,

pub fn cast_into(self) -> F

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<F> Match for F

fn matches<T>(&self) -> bool where T: TryCastFrom<Self>,

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<F, T> TryCastFrom<F> for T where T: CastFrom<F>,

pub fn can_cast_from(&F) -> bool

pub fn opt_cast_from(f: F) -> Option<T>

fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where OnErr: FnOnce(&T) -> Err,

impl<F, T> TryCastInto<T> for F where T: TryCastFrom<F>,

pub fn can_cast_into(&self) -> bool

pub fn opt_cast_into(self) -> Option<T>

fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where OnErr: FnOnce(&Self) -> Err,

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

pub fn new(
left: MergeSource<F, D, Txn>,
right: IndexSlice<F, D, Txn>
) -> TCResult<Self>

pub async fn slice_rows<'a>(
self,
txn_id: TxnId,
bounds: Bounds,
reverse: bool
) -> TCResult<TCBoxTryStream<'a, Vec<Value>>>

impl<F, D, Txn> Instance for Merged<F, D, Txn> where
Self: Send + Sync,

fn key(&self) -> &[Column ]

fn values(&self) -> &[Column ]

fn validate_order(&self, order: &[Id ]) -> TCResult<()>

fn rows<'a, 'async_trait>(
self,
txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<TCBoxTryStream<'a, Vec<Value>>>> + Send + 'async_trait>> where
'a: 'async_trait,
Self: 'async_trait,

fn count<'async_trait>(
self,
txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<u64>> + Send + 'async_trait>> where
Self: Send + 'async_trait,

impl<F, D, Txn> RefUnwindSafe for Merged<F, D, Txn> where
D: RefUnwindSafe,
F: RefUnwindSafe,
Txn: RefUnwindSafe,

impl<F, D, Txn> Send for Merged<F, D, Txn> where
D: Send + Sync,
F: Send + Sync,
Txn: Send + Sync,

impl<F, D, Txn> Sync for Merged<F, D, Txn> where
D: Send + Sync,
F: Send + Sync,
Txn: Send + Sync,

impl<F, D, Txn> UnwindSafe for Merged<F, D, Txn> where
D: RefUnwindSafe,
F: RefUnwindSafe,
Txn: RefUnwindSafe,

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<F, T> CastFrom<F> for T where
T: From<F>,

impl<T, F> CastInto<F> for T where
F: CastFrom<T>,

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

fn matches<T>(&self) -> bool where
T: TryCastFrom<Self>,

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

impl<F, T> TryCastFrom<F> for T where
T: CastFrom<F>,

fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,

impl<F, T> TryCastInto<T> for F where
T: TryCastFrom<F>,

fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,

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>,