pub struct InlineLet {
    pub inline_mfp: bool,
    /* private fields */
}
Expand description

Install replace certain Get operators with their Let value.

Fields

inline_mfp: bool

If true, inline MFPs around a Get.

We want this value to be true for the InlineLet call that comes right before crate::join_implementation::JoinImplementation runs because crate::join_implementation::JoinImplementation cannot lift MFPs through a Let.

Generally, though, we prefer to be more conservative in our inlining in order to be able to better detect CSEs.

Implementations

Construct a new InlineLet instance with the given inline_mfp where recursion_guard is initialized with RECURSION_LIMIT as limit.

Performs the InlineLet transformation without tracing the result.

Install replace certain Get operators with their Let value.

IMPORTANT: This transform is used for cleaning up after RelationCSE, which adds Let operators pretty aggressively, leading to very deep dataflows. Nothing in this transform should lead to expensive recursive traversal of the subgraph, such as the one in MirRelationExpr::typ, since that may result in a stack overflow.

Trait Implementations

Extracts a reference to the recursion guard embedded within the type.
Checks whether it is safe to recur and calls f if so. Read more
Like CheckedRecursion::checked_recur, but operates on a mutable reference to Self. Read more
Formats the value using the given formatter. Read more
Transform a relation into a functionally equivalent relation.
A string describing the transform. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
Attaches the current Context to this type, returning a WithContext wrapper. Read more
Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

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

Wrap the input message T in a tonic::Request
The alignment of pointer.
The type for initializers.
Initializes a with the given initializer. Read more
Dereferences the given pointer. Read more
Mutably dereferences the given pointer. Read more
Drops the object pointed to by the given pointer. Read more
Should always be Self
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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