Struct repr::relation::ColumnType [−][src]
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
fn 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
Adds names and types of the fields of the struct or enum to rti
. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
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
Mutably borrows from an owned value. Read more
Compare self to key
and return true
if they are equal.
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more