CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt64
   ColumnDeclaration d (children 1)
    DataType Dynamic
 Storage definition (children 1)
  Function Memory
