Struct transform::column_knowledge::DatumKnowledge [−][src]
Expand description
Information about a specific column.
Fields
value: Option<(Result<Row, EvalError>, ColumnType)>
If set, a specific value for the column.
nullable: bool
If false, the value is not Datum::Null
.
Implementations
Trait Implementations
Performs the conversion.
Performs the conversion.
Auto Trait Implementations
impl RefUnwindSafe for DatumKnowledge
impl Send for DatumKnowledge
impl Sync for DatumKnowledge
impl Unpin for DatumKnowledge
impl UnwindSafe for DatumKnowledge
Blanket Implementations
Mutably borrows from an owned value. Read more
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