diff --git a/src/Dibi/Result.php b/src/Dibi/Result.php
index 95febde8..b5987221 100644
--- a/src/Dibi/Result.php
+++ b/src/Dibi/Result.php
@@ -127,6 +127,15 @@ class Result implements IDataSource
 	}
 
 
+	/**
+	 * Returns the number of columns in a result set.
+	 */
+	final public function getColumnCount(): int
+	{
+		return count($this->types);
+	}
+
+
 	/********************* fetching rows ****************d*g**/
 
 
diff --git a/tests/dibi/Result.meta.phpt b/tests/dibi/Result.meta.phpt
index 253ab3b5..aa821a36 100644
--- a/tests/dibi/Result.meta.phpt
+++ b/tests/dibi/Result.meta.phpt
@@ -13,12 +13,17 @@ require __DIR__ . '/bootstrap.php';
 $conn = new Dibi\Connection($config);
 $conn->loadFile(__DIR__ . "/data/$config[system].sql");
 
-$info = $conn->query('
+$res = $conn->query('
 	SELECT products.product_id, orders.order_id, customers.name, products.product_id + 1 AS [xXx]
 	FROM ([products]
 	INNER JOIN [orders] ON [products.product_id] = [orders.product_id])
 	INNER JOIN [customers] ON [orders.customer_id] = [customers.customer_id]
-')->getInfo();
+');
+
+$info = $res->getInfo();
+
+
+Assert::same(4, $res->getColumnCount());
 
 
 Assert::same(