Struct mz_transform::monotonic::MonotonicFlag
source · pub struct MonotonicFlag { /* private fields */ }
Expand description
A struct that holds a recursive function that determines if a relation is monotonic, and applies any optimizations along the way.
Implementations§
source§impl MonotonicFlag
impl MonotonicFlag
sourcepub fn apply(
&self,
expr: &mut MirRelationExpr,
mon_ids: &BTreeSet<GlobalId>,
locals: &mut BTreeSet<LocalId>
) -> Result<bool, RecursionLimitError>
pub fn apply( &self, expr: &mut MirRelationExpr, mon_ids: &BTreeSet<GlobalId>, locals: &mut BTreeSet<LocalId> ) -> Result<bool, RecursionLimitError>
Determines if a relation is monotonic, and applies any optimizations along the way. mon_ids should be the ids of monotonic sources and indexes involved in expr.
Trait Implementations§
source§impl CheckedRecursion for MonotonicFlag
impl CheckedRecursion for MonotonicFlag
source§fn recursion_guard(&self) -> &RecursionGuard
fn recursion_guard(&self) -> &RecursionGuard
Extracts a reference to the recursion guard embedded within the type.
source§fn checked_recur<F, T, E>(&self, f: F) -> Result<T, E>
fn checked_recur<F, T, E>(&self, f: F) -> Result<T, E>
Checks whether it is safe to recur and calls
f
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fn checked_recur_mut<F, T, E>(&mut self, f: F) -> Result<T, E>
Like
CheckedRecursion::checked_recur
, but operates on a mutable
reference to Self
.source§impl Debug for MonotonicFlag
impl Debug for MonotonicFlag
source§impl Default for MonotonicFlag
impl Default for MonotonicFlag
source§fn default() -> MonotonicFlag
fn default() -> MonotonicFlag
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl !Freeze for MonotonicFlag
impl !RefUnwindSafe for MonotonicFlag
impl Send for MonotonicFlag
impl !Sync for MonotonicFlag
impl Unpin for MonotonicFlag
impl UnwindSafe for MonotonicFlag
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fn copy_onto( self, target: &mut ConsecutiveOffsetPairs<R, O> ) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index
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