In the context of Earth System Models (ESMs), "v2.0" typically refers to the release of the ESMValTool which includes extended diagnostic features for climate variability like the PDO.
$stmt = $pdo->prepare("SELECT name, email FROM users WHERE id = ?"); $metadata = $stmt->getColumnMeta(0); // Extended metadata echo $metadata['native_type']; // "VARCHAR" echo $metadata['pdo_type']; // PDO::PARAM_STR echo $metadata['table']; // "users" pdo v20 extended features