I write a customized table source, and it emits some fields let's say f1, f2.
And then I just write to a sink with a reversed order of fields, as below: *select f2, f1 from customTableSource* And I found that it actually doesn't do the field reverse. Then I tried with flink provided CsvTableSource and CsvTableSink, I found that it has no problem reverse the order, and after some investigation I found that it's related with two things: 1. *CsvTableSource* implemented *ProjectableTableSource* 2. *RowCsvInputFormat* supports *selectedFields* Do I have to do the two things as well in my custom table source to get the reverse work? -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
