PgSQL large object resource is incorrectly closed

[Yurunsoft]

Description

The following code:

<?php
$pdo = new PDO('pgsql:host=127.0.0.1;dbname=test', 'root', 'root');
$pdo->beginTransaction();
$oid = $pdo->pgsqlLOBCreate();
var_dump($lob = $pdo->pgsqlLOBOpen($oid, 'wb'));
fwrite($lob, 'test');
$pdo->commit();
$pdo->beginTransaction();
var_dump($lob = $pdo->pgsqlLOBOpen($oid, 'wb'));
var_dump(fgets($lob));

Resulted in this output:

resource(4) of type (stream)
resource(5) of type (stream)
bool(false)

But I expected this output instead:

resource(4) of type (stream)
resource(5) of type (stream)
string(4) "test"

PHP Version

PHP 8.0.21

Operating System

Ubuntu 20.04

[cmb69]

Indeed, the first LOB stream is only closed after the second transaction has been started.