CreateQuery test2 (children 3)
 Identifier test2
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration col1 (children 1)
    DataType UInt64
   ColumnDeclaration col2 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt64
 Storage definition (children 1)
  Function Memory