Struct RoundProjectionExpr 

pub struct RoundProjectionExpr { /* private fields */ }

RoundProjectionExpr

Shared bounded numeric rounding projection over one source field and one canonical scalar numeric expression. This keeps ROUND on the scalar projection seam without opening a generic function-builder surface.

Trait Implementations

impl Clone for RoundProjectionExpr

fn clone(&self) -> RoundProjectionExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoundProjectionExpr

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

Formats the value using the given formatter.

impl PartialEq for RoundProjectionExpr

fn eq(&self, other: &RoundProjectionExpr) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ValueProjectionExpr for RoundProjectionExpr

fn field(&self) -> &str

Borrow the single source field used by this bounded helper.

fn sql_label(&self) -> String

Render the stable SQL-style output label for this projection.

fn apply_value(&self, value: Value) -> Result<Value, QueryError>

Apply this projection to one already-loaded source value.

impl Eq for RoundProjectionExpr

impl StructuralPartialEq for RoundProjectionExpr