CreateQuery test (children 2)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration arr (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType LowCardinality (children 1)
         ExpressionList (children 1)
          DataType String