up version smi2 clickhouse driver

Author: argayash

composer.json

@@ -13,7 +13,7 @@
     ],
     "require": {
         "php": "^7.1",
-        "smi2/phpClickHouse": "^0.18",
+        "smi2/phpClickHouse": "^1.0",
         "doctrine/dbal": "^2.6"
     },
     "autoload": {

src/ClickHouseStatement.php

@@ -103,7 +103,7 @@ public function closeCursor()
     public function columnCount()
     {
         return $this->rows
-            ? \count(\array_slice($this->rows, 0, 1)[0])
+            ? \count(current($this->rows))
             : 0;
     }
 

tests/SelectTest.php

@@ -203,5 +203,13 @@ public function testDynamicParametersSelect()
             ]
         ], $stmt->fetchAll());
     }
+
+    public function testColumnCount()
+    {
+        $stmt = $this->connection->prepare('SELECT * FROM test_select_table');
+        $stmt->execute();
+
+        $this->assertEquals(3, $stmt->columnCount());
+    }
 }