fn plan_cast(
ecx: &ExprContext<'_>,
expr: &Expr<Aug>,
data_type: &ResolvedDataType,
) -> Result<CoercibleScalarExpr, PlanError>
fn plan_cast(
ecx: &ExprContext<'_>,
expr: &Expr<Aug>,
data_type: &ResolvedDataType,
) -> Result<CoercibleScalarExpr, PlanError>