Struct SelectExpr 

pub struct SelectExpr;

Select marker for raw SQL or an untyped expression: the caller must name the row type.

Trait Implementations

impl Clone for SelectExpr

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SelectExpr

impl Debug for SelectExpr

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<RowRef, Row: ?Sized, R> DecodeSelectedRef<RowRef, R> for SelectExpr

where RowRef: Deref<Target = Row>, R: FromDrizzleRow<Row>,

fn decode(row: RowRef) -> Result<R, DrizzleError>

Decodes row into R.

impl Default for SelectExpr

fn default() -> Self

Returns the “default value” for a type.

impl<Row: ?Sized, Inferred, Actual, Proof> MarkerColumnCountValid<Row, Inferred, Actual, Proof> for SelectExpr

where Inferred: SameType<Actual>,

impl<T> ResolveRow<T> for SelectExpr

type Row = ()

The inferred row type.

impl SelectSources for SelectExpr

type Sources = ()

The sources tree the outer query must contain.

impl SelectionRows for SelectExpr

type Rows = ZeroOrMore

ExactlyOne or ZeroOrMore.

impl<Other> SetOperand<Other> for SelectExpr

type Combined = SelectExpr

The marker of the compound query.