Struct mz_transform::analysis::types::RelationType
source · pub struct RelationType;Expand description
Analysis that determines the type of relation expressions.
The value is Some when it discovers column types, and None in the case that
it has discovered no constraining information on the column types. The None
variant should only occur in the course of iteration, and should not be revealed
as an output of the analysis. One can unwrap() the result, and if it errors then
either the expression is malformed or the analysis has a bug.
The analysis will panic if an expression is not well typed (i.e. if try_col_with_input_cols
returns an error).
Trait Implementations§
source§impl Analysis for RelationType
impl Analysis for RelationType
§type Value = Option<Vec<ColumnType>>
type Value = Option<Vec<ColumnType>>
The type of value this analysis associates with an expression.
source§fn derive(
&self,
expr: &MirRelationExpr,
index: usize,
results: &[Self::Value],
depends: &Derived,
) -> Self::Value
fn derive( &self, expr: &MirRelationExpr, index: usize, results: &[Self::Value], depends: &Derived, ) -> Self::Value
The analysis value derived for an expression, given other analysis results. Read more
source§fn lattice() -> Option<Box<dyn Lattice<Self::Value>>>
fn lattice() -> Option<Box<dyn Lattice<Self::Value>>>
When available, provide a lattice interface to allow optimistic recursion. Read more
source§fn announce_dependencies(_builder: &mut DerivedBuilder<'_>)
fn announce_dependencies(_builder: &mut DerivedBuilder<'_>)
Announce any dependencies this analysis has on other analyses. Read more
Auto Trait Implementations§
impl Freeze for RelationType
impl RefUnwindSafe for RelationType
impl Send for RelationType
impl Sync for RelationType
impl Unpin for RelationType
impl UnwindSafe for RelationType
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> FmtForward for T
impl<T> FmtForward for T
source§fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
Causes
self to use its Binary implementation when Debug-formatted.source§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
Causes
self to use its Display implementation when
Debug-formatted.source§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
Causes
self to use its LowerExp implementation when
Debug-formatted.source§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
Causes
self to use its LowerHex implementation when
Debug-formatted.source§fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
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Self: Pointer,
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Self: Pointer,
Causes
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Debug-formatted.source§fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
Causes
self to use its UpperExp implementation when
Debug-formatted.source§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
Causes
self to use its UpperHex implementation when
Debug-formatted.source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
source§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
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source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T in a tonic::RequestCreates a shared type from an unshared type.
source§impl<T, U> OverrideFrom<Option<&T>> for Uwhere
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impl<T, U> OverrideFrom<Option<&T>> for Uwhere
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T: ?Sized,
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T: ?Sized,
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Self: Sized,
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Pipes by value. This is generally the method you want to use. Read more
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R: 'a,
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Mutably borrows
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&'a mut self,
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