Function plan_field_access

src/sql/src/plan/query.rs:4297–4324

(
    ecx: &ExprContext,
    expr: &Expr<Aug>,
    field: &Ident,
)

}

fn plan_field_access(
    ecx: &ExprContext,
    expr: &Expr<Aug>,
    field: &Ident,
) -> Result<CoercibleScalarExpr, PlanError> {
    let field = normalize::column_name(field.clone());
    let expr = plan_expr(ecx, expr)?.type_as_any(ecx)?;
    let ty = ecx.scalar_type(&expr);
    let i = match &ty {
        SqlScalarType::Record { fields, .. } => {
            fields.iter().position(|(name, _ty)| *name == field)
        }
        ty => sql_bail!(
            "column notation applied to type {}, which is not a composite type",
            ecx.humanize_sql_scalar_type(ty, false)
        ),
    };
    match i {
        None => sql_bail!(
            "field {} not found in data type {}",
            field,
            ecx.humanize_sql_scalar_type(&ty, false)
        ),
        Some(i) => Ok(expr
            .call_unary(UnaryFunc::RecordGet(expr_func::RecordGet(i)))
            .into()),
    }
}

fn plan_subscript(
    ecx: &ExprContext,