Struct mz_transform::attribute::RelationType
source · pub struct RelationType {
pub results: Vec<Option<Vec<ColumnType>>>,
}
Expand description
Compute the column types of each subtree of a MirRelationExpr from the bottom-up.
Fields§
§results: Vec<Option<Vec<ColumnType>>>
A vector of results for all nodes in the visited tree in post-visit order.
Trait Implementations§
source§impl Attribute for RelationType
impl Attribute for RelationType
§type Value = Option<Vec<ColumnType>>
type Value = Option<Vec<ColumnType>>
The domain of the attribute values.
source§fn derive(&mut self, expr: &MirRelationExpr, deps: &DerivedAttributes<'_>)
fn derive(&mut self, expr: &MirRelationExpr, deps: &DerivedAttributes<'_>)
Derive an attribute.
source§fn add_dependencies(builder: &mut DerivedAttributesBuilder<'_>)where
Self: Sized,
fn add_dependencies(builder: &mut DerivedAttributesBuilder<'_>)where
Self: Sized,
The attribute ids of all other attributes that this attribute depends on.
source§fn get_results(&self) -> &Vec<Self::Value>
fn get_results(&self) -> &Vec<Self::Value>
Attributes for each subexpression, visited in post-order.
source§fn get_results_mut(&mut self) -> &mut Vec<Self::Value>
fn get_results_mut(&mut self) -> &mut Vec<Self::Value>
Mutable attributes for each subexpression, visited in post-order.
source§fn take(self) -> Vec<Self::Value>
fn take(self) -> Vec<Self::Value>
Consume self and return the attributes for each subexpression.
source§fn schedule_env_tasks(&mut self, _expr: &MirRelationExpr)
fn schedule_env_tasks(&mut self, _expr: &MirRelationExpr)
Schedule environment maintenance tasks. Read more
source§fn handle_env_tasks(&mut self)
fn handle_env_tasks(&mut self)
Handle scheduled environment maintenance tasks. Read more
source§impl<'c> AttributeContainer<RelationType> for AttributeStore<'c>
impl<'c> AttributeContainer<RelationType> for AttributeStore<'c>
source§fn push_attribute(&mut self, value: RelationType)
fn push_attribute(&mut self, value: RelationType)
Push the attribute to the store.
source§fn take_attribute(&mut self) -> Option<RelationType>
fn take_attribute(&mut self) -> Option<RelationType>
Take the attribute from the store, leaving its slot empty.
source§fn attribute_is_enabled(&self) -> bool
fn attribute_is_enabled(&self) -> bool
Check if the attribute is enabled.
source§fn get_attribute(&self) -> Option<&RelationType>
fn get_attribute(&self) -> Option<&RelationType>
Get an immutable reference to the attribute.
source§fn get_mut_attribute(&mut self) -> Option<&mut RelationType>
fn get_mut_attribute(&mut self) -> Option<&mut RelationType>
Get a mutable reference to the attribute.
source§impl Default for RelationType
impl Default for RelationType
source§fn default() -> RelationType
fn default() -> RelationType
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl RefUnwindSafe for RelationType
impl Send for RelationType
impl Sync for RelationType
impl Unpin for RelationType
impl UnwindSafe for RelationType
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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-formatted.source§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
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Self: LowerExp,
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Debug
-formatted.source§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
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