Struct mz_repr::ColumnType
source · [−]pub struct ColumnType {
pub scalar_type: ScalarType,
pub nullable: bool,
}
Expand description
The type of a Datum
.
ColumnType
bundles information about the scalar type of a datum (e.g.,
Int32 or String) with its nullability.
To construct a column type, either initialize the struct directly, or
use the ScalarType::nullable
method.
Fields
scalar_type: ScalarType
The underlying scalar type (e.g., Int32 or String) of this column.
nullable: bool
Whether this datum can be null.
Implementations
Trait Implementations
sourceimpl Arbitrary for ColumnType
impl Arbitrary for ColumnType
type Parameters = (<ScalarType as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters)
type Parameters = (<ScalarType as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters)
The type of parameters that arbitrary_with
accepts for configuration
of the generated Strategy
. Parameters must implement Default
. Read more
type Strategy = Map<(<ScalarType as Arbitrary>::Strategy, <bool as Arbitrary>::Strategy), fn(_: (ScalarType, bool)) -> Self>
type Strategy = Map<(<ScalarType as Arbitrary>::Strategy, <bool as Arbitrary>::Strategy), fn(_: (ScalarType, bool)) -> Self>
sourcefn arbitrary_with(_top: Self::Parameters) -> Self::Strategy
fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy
sourceimpl Clone for ColumnType
impl Clone for ColumnType
sourcefn clone(&self) -> ColumnType
fn clone(&self) -> ColumnType
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for ColumnType
impl Debug for ColumnType
sourceimpl<'de> Deserialize<'de> for ColumnType
impl<'de> Deserialize<'de> for ColumnType
sourcefn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl Hash for ColumnType
impl Hash for ColumnType
sourceimpl MzReflect for ColumnType
impl MzReflect for ColumnType
sourcefn add_to_reflected_type_info(rti: &mut ReflectedTypeInfo)
fn add_to_reflected_type_info(rti: &mut ReflectedTypeInfo)
Adds names and types of the fields of the struct or enum to rti
. Read more
sourceimpl Ord for ColumnType
impl Ord for ColumnType
sourceimpl PartialEq<ColumnType> for ColumnType
impl PartialEq<ColumnType> for ColumnType
sourcefn eq(&self, other: &ColumnType) -> bool
fn eq(&self, other: &ColumnType) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &ColumnType) -> bool
fn ne(&self, other: &ColumnType) -> bool
This method tests for !=
.
sourceimpl PartialOrd<ColumnType> for ColumnType
impl PartialOrd<ColumnType> for ColumnType
sourcefn partial_cmp(&self, other: &ColumnType) -> Option<Ordering>
fn partial_cmp(&self, other: &ColumnType) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
sourceimpl RustType<ProtoColumnType> for ColumnType
impl RustType<ProtoColumnType> for ColumnType
sourcefn into_proto(&self) -> ProtoColumnType
fn into_proto(&self) -> ProtoColumnType
Convert a Self
into a Proto
value.
sourcefn from_proto(proto: ProtoColumnType) -> Result<Self, TryFromProtoError>
fn from_proto(proto: ProtoColumnType) -> Result<Self, TryFromProtoError>
Consume and convert a Proto
back into a Self
value. Read more
sourceimpl Serialize for ColumnType
impl Serialize for ColumnType
impl Eq for ColumnType
impl StructuralEq for ColumnType
impl StructuralPartialEq for ColumnType
Auto Trait Implementations
impl RefUnwindSafe for ColumnType
impl Send for ColumnType
impl Sync for ColumnType
impl Unpin for ColumnType
impl UnwindSafe for ColumnType
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> CallHasher for T where
T: Hash + ?Sized,
impl<T> CallHasher for T where
T: Hash + ?Sized,
sourceimpl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to key
and return true
if they are equal.
sourceimpl<T> FutureExt for T
impl<T> FutureExt for T
sourcefn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
sourcefn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
sourcefn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message T
in a tonic::Request
sourceimpl<T> ProgressEventTimestamp for T where
T: Data + Debug + Any,
impl<T> ProgressEventTimestamp for T where
T: Data + Debug + Any,
sourceimpl<P, R> ProtoType<R> for P where
R: RustType<P>,
impl<P, R> ProtoType<R> for P where
R: RustType<P>,
sourcefn into_rust(self) -> Result<R, TryFromProtoError>
fn into_rust(self) -> Result<R, TryFromProtoError>
See RustType::from_proto
.
sourcefn from_rust(rust: &R) -> P
fn from_rust(rust: &R) -> P
See RustType::into_proto
.
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more