Merge pull request #10833 from ClickHouse/column-vector-additional-assert

Additional assert in ColumnVector

src/Columns/ColumnVector.h

@@ -201,6 +201,7 @@ public:
 
     Field operator[](size_t n) const override
     {
+        assert(n < data.size()); /// This assert is more strict than the corresponding assert inside PODArray.
         return data[n];
     }