Method NewPresenceTest

common/expr_factory.h:202–210

            typename = std::enable_if_t<IsExprLike<Operand>::value>,
            typename = std::enable_if_t<IsStringLike<Field>::value>>
  Expr NewPresenceTest(ExprId id, Operand operand, Field field) {
    Expr expr;
    expr.set_id(id);
    auto& select_expr = expr.mutable_select_expr();
    select_expr.set_operand(std::move(operand));
    select_expr.set_field(std::move(field));
    select_expr.set_test_only(true);
    return expr;
  }

  template <typename Function, typename Args,
            typename = std::enable_if_t<IsStringLike<Function>::value>,