Connection::getInsertId() returns int|string (BC break)

Author: dg

src/Database/Connection.php

@@ -138,7 +138,7 @@ public function setRowNormalizer(?callable $normalizer): static
 	}
 
 
-	public function getInsertId(?string $sequence = null): string
+	public function getInsertId(?string $sequence = null): int|string
 	{
 		return $this->getConnectionDriver()->getInsertId($sequence);
 	}

src/Database/Drivers/PDO/Connection.php

@@ -112,11 +112,11 @@ public function rollBack(): void
 	}
 
 
-	public function getInsertId(?string $sequence = null): string
+	public function getInsertId(?string $sequence = null): int|string
 	{
 		try {
 			$res = $this->pdo->lastInsertId($sequence);
-			return $res === false ? '0' : $res;
+			return $res === false ? 0 : $res;
 		} catch (PDOException $e) {
 			throw new ($this->convertException($e, $args))(...$args);
 		}

src/Database/Explorer.php

@@ -56,7 +56,7 @@ public function transaction(callable $callback): mixed
 	}
 
 
-	public function getInsertId(?string $sequence = null): string
+	public function getInsertId(?string $sequence = null): int|string
 	{
 		return $this->connection->getInsertId($sequence);
 	}