diff --git a/src/Bridges/DatabaseTracy/ConnectionPanel.php b/src/Bridges/DatabaseTracy/ConnectionPanel.php
index c974cc898..ad078c747 100644
--- a/src/Bridges/DatabaseTracy/ConnectionPanel.php
+++ b/src/Bridges/DatabaseTracy/ConnectionPanel.php
@@ -156,7 +156,7 @@ public function getPanel(): ?string
 					$cmd = is_string($this->explain)
 						? $this->explain
 						: 'EXPLAIN';
-					$explain = (new ResultSet($connection->getConnectionDriver()->query("$cmd $sql", $params)))->fetchAll();
+					$explain = (new ResultSet($connection, $connection->getConnectionDriver()->query("$cmd $sql", $params)))->fetchAll();
 				} catch (\PDOException) {
 				}
 			}
diff --git a/src/Database/Connection.php b/src/Database/Connection.php
index 74d8b5652..c34ef14bc 100644
--- a/src/Database/Connection.php
+++ b/src/Database/Connection.php
@@ -30,7 +30,6 @@ class Connection
 	private ?SqlPreprocessor $preprocessor;
 
 	/** @var callable(array, ResultSet): array */
-	private $rowNormalizer = [Helpers::class, 'normalizeRow'];
 	private TypeConverter $typeConverter;
 	private ?string $sql = null;
 	private int $transactionDepth = 0;
@@ -136,10 +135,9 @@ public function getReflection(): Reflection
 	}
 
 
-	public function setRowNormalizer(?callable $normalizer): static
+	public function setRowNormalizer(): static
 	{
-		$this->rowNormalizer = $normalizer;
-		return $this;
+		throw new Nette\DeprecatedException(__METHOD__ . '() is deprecated, use getTypeConverter() instead.');
 	}
 
 
@@ -229,7 +227,7 @@ public function query(#[Language('SQL')] string $sql, #[Language('GenericSQL')]
 			$time = microtime(true);
 			$result = $this->connection->query($this->sql, $params);
 			$time = microtime(true) - $time;
-			$resultSet = new ResultSet($result, new SqlLiteral($this->sql, $params), $this->rowNormalizer, $time);
+			$resultSet = new ResultSet($this, $result, new SqlLiteral($this->sql, $params), $time);
 		} catch (DriverException $e) {
 			Arrays::invoke($this->onQuery, $this, $e);
 			throw $e;
diff --git a/src/Database/Helpers.php b/src/Database/Helpers.php
index f07237e44..2ef57fc6a 100644
--- a/src/Database/Helpers.php
+++ b/src/Database/Helpers.php
@@ -151,19 +151,6 @@ public static function dumpSql(string $sql, ?array $params = null, ?Connection $
 	}
 
 
-	/** @internal */
-	public static function normalizeRow(array $row, ResultSet $resultSet): array
-	{
-		foreach ($resultSet->resolveColumnConverters() as $key => $converter) {
-			$value = $row[$key];
-			$row[$key] = isset($value, $converter)
-				? $converter($value)
-				: $value;
-		}
-		return $row;
-	}
-
-
 	/**
 	 * Import SQL dump from file - extremely fast.
 	 * @param  ?array<callable(int, ?float): void>  $onProgress
diff --git a/src/Database/ResultSet.php b/src/Database/ResultSet.php
index e9896bfc9..0fa66eb2f 100644
--- a/src/Database/ResultSet.php
+++ b/src/Database/ResultSet.php
@@ -17,8 +17,6 @@
  */
 class ResultSet implements \Iterator
 {
-	/** @var callable(array, ResultSet): array */
-	private readonly mixed $normalizer;
 	private Row|false|null $lastRow = null;
 	private int $lastRowKey = -1;
 
@@ -28,19 +26,18 @@ class ResultSet implements \Iterator
 
 
 	public function __construct(
+		private readonly Connection $connection,
 		private readonly Drivers\Result $result,
 		private readonly ?SqlLiteral $query = null,
-		?callable $normalizer = null,
 		private ?float $time = null,
 	) {
-		$this->normalizer = $normalizer;
 	}
 
 
 	/** @deprecated */
 	public function getConnection(): Connection
 	{
-		throw new Nette\DeprecatedException(__METHOD__ . '() is deprecated.');
+		return $this->connection;
 	}
 
 
@@ -77,18 +74,20 @@ public function getTime(): float
 	/** @internal */
 	public function normalizeRow(array $row): array
 	{
-		return $this->normalizer
-			? ($this->normalizer)($row, $this)
-			: $row;
+		$converters = $this->converters ??= $this->resolveColumnConverters();
+		foreach ($row as $key => $value) {
+			$converter = $converters[$key];
+			$row[$key] = isset($value, $converter)
+				? $converter($value)
+				: $value;
+		}
+
+		return $row;
 	}
 
 
-	public function resolveColumnConverters(): array
+	private function resolveColumnConverters(): array
 	{
-		if (isset($this->converters)) {
-			return $this->converters;
-		}
-
 		$res = [];
 		$engine = $this->connection->getDatabaseEngine();
 		$converter = $this->connection->getTypeConverter();
@@ -97,7 +96,7 @@ public function resolveColumnConverters(): array
 				? $engine->resolveColumnConverter($meta, $converter)
 				: null;
 		}
-		return $this->converters = $res;
+		return $res;
 	}
 
 
diff --git a/src/Database/TypeConverter.php b/src/Database/TypeConverter.php
index 190905dc9..29db37be1 100644
--- a/src/Database/TypeConverter.php
+++ b/src/Database/TypeConverter.php
@@ -33,7 +33,7 @@ final class TypeConverter
 	 * Heuristic column type detection.
 	 * @return Type::*
 	 */
-	public static function detectType(string $nativeType): string
+	private function detectType(string $nativeType): string
 	{
 		static $cache;
 		if (!isset($cache[$nativeType])) {
@@ -51,7 +51,7 @@ public static function detectType(string $nativeType): string
 
 	public function resolve(string $nativeType): ?\Closure
 	{
-		return match (self::detectType($nativeType)) {
+		return match ($this->detectType($nativeType)) {
 			Type::Integer => $this->toInt(...),
 			Type::Decimal => $this->convertDecimal ? $this->toDecimal(...) : null,
 			Type::Float => $this->toFloat(...),
diff --git a/tests/Database/ResultSet.customNormalizer.phpt b/tests/Database/ResultSet.customNormalizer.phpt
index 4da4189ae..8749182c8 100644
--- a/tests/Database/ResultSet.customNormalizer.phpt
+++ b/tests/Database/ResultSet.customNormalizer.phpt
@@ -16,10 +16,11 @@ Nette\Database\Helpers::loadFromFile($connection, __DIR__ . "/files/{$driverName
 $connection->query('UPDATE author SET born=?', new DateTime('2022-01-23'));
 
 
+// TODO
 test('disabled normalization', function () use ($connection) {
 	$driverName = $GLOBALS['driverName'];
 
-	$connection->setRowNormalizer(null);
+	$connection->getTypeConverter()->convertDateTime = false;
 	$res = $connection->query('SELECT * FROM author');
 	$asInt = $driverName === 'pgsql' || ($driverName !== 'sqlsrv' && PHP_VERSION_ID >= 80100);
 	Assert::same([