FETCH_LAZY not properly supported for "long" columns

Description

The following code:

<?php
const SIZE = 300;
$pdo = new PDO(DSN, USER, PASS);
$pdo->exec("CREATE TABLE gh9498 (name VARCHAR(" . SIZE . "))");
$pdo->exec("INSERT INTO gh9498 VALUES ('" . str_repeat("a", SIZE) . "')");
$statement = $pdo->prepare("SELECT * FROM gh9498");
$statement->execute();
$row = $statement->fetch(PDO::FETCH_LAZY);
var_dump($row);
var_dump($row);

Resulted in this output:

object(PDORow)#3 (2) {
  ["queryString"]=>
  string(20) "SELECT * FROM gh9498"
  ["name"]=>
  string(300) "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
}
object(PDORow)#3 (2) {
  ["queryString"]=>
  string(20) "SELECT * FROM gh9498"
  ["name"]=>
  NULL
}

But I expected this output instead:

object(PDORow)#3 (2) {
  ["queryString"]=>
  string(20) "SELECT * FROM gh9498"
  ["name"]=>
  string(300) "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
}
object(PDORow)#3 (2) {
  ["queryString"]=>
  string(20) "SELECT * FROM gh9498"
  ["name"]=>
  string(300) "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
}

Obviously, accessing the row for the first time works as expected, but accessing it another time, does not. If SIZE < 256, accessing the row multiple times is properly supported.

PHP Version

PHP-8.0

Operating System

any

Tái hiện ví dụ với PDO::FETCH_LAZY và một giá trị dài hơn 256 ký tự, sau đó lần theo đường dẫn fetch của PDO đối với việc truy cập lặp lại vào hàng. Thêm một kiểm thử hồi quy bao quát hành vi đã được báo cáo; được coi là hoàn tất khi cột dài vẫn khả dụng ở lần truy cập thứ hai và khớp với đầu ra mong đợi.