CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType Map (children 1)
     ExpressionList (children 2)
      DataType UInt8
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType Map (children 1)
         ExpressionList (children 2)
          DataType UInt8
          DataType Array (children 1)
           ExpressionList (children 1)
            DataType AggregateFunction (children 1)
             ExpressionList (children 2)
              Identifier uniq
              DataType UInt64
 Storage definition (children 1)
  Function Memory