CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 2)
      DataType String
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType Map (children 1)
         ExpressionList (children 2)
          DataType String
          DataType FixedString (children 1)
           ExpressionList (children 1)
            Literal UInt64_1000000
 Storage definition (children 1)
  Function Memory
