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QueryBlockPlan

Struct QueryBlockPlan 

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pub struct QueryBlockPlan {
Show 17 fields pub projections: Vec<ProjectionPlan>, pub from: Option<SourcePlan>, pub where: Option<ScalarExpr>, pub compute: ComputePlan, pub group_by: Vec<ScalarExpr>, pub grouping_sets: Vec<Vec<ScalarExpr>>, pub group_distinct: bool, pub having: Option<ScalarExpr>, pub order_by: Vec<OrderPlan>, pub limit: Option<ScalarExpr>, pub with_ties: bool, pub offset: Option<ScalarExpr>, pub distinct: bool, pub distinct_on: Vec<ScalarExpr>, pub subqueries: Vec<QueryPlan>, pub access: AccessPathPlan, pub locking: Vec<LockingClause>,
}
Expand description

One SELECT block after WITH and set-operation structure has been pulled into explicit parent/child nodes.

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§projections: Vec<ProjectionPlan>§from: Option<SourcePlan>§where: Option<ScalarExpr>§compute: ComputePlan§group_by: Vec<ScalarExpr>§grouping_sets: Vec<Vec<ScalarExpr>>§group_distinct: bool§having: Option<ScalarExpr>§order_by: Vec<OrderPlan>§limit: Option<ScalarExpr>§with_ties: bool§offset: Option<ScalarExpr>§distinct: bool§distinct_on: Vec<ScalarExpr>§subqueries: Vec<QueryPlan>§access: AccessPathPlan§locking: Vec<LockingClause>

FOR UPDATE / FOR SHARE clauses belonging to this query block.

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impl QueryBlockPlan

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pub fn expressions(&self) -> Vec<&ScalarExpr>

Expression nodes evaluated while executing this query block. Query bodies under FROM (SELECT ...) are excluded because their child plan installs its own expression scope when it executes.

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impl Clone for QueryBlockPlan

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fn clone(&self) -> QueryBlockPlan

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for QueryBlockPlan

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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<'de> Deserialize<'de> for QueryBlockPlan

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for QueryBlockPlan

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.