alamb commented on issue #4570:
URL: 
https://github.com/apache/arrow-datafusion/issues/4570#issuecomment-1345252492

   Her is my solution sketch:
   
   1. Add `impl Display for Record` to sqlogictests (that is the opposite of 
`parse`)
   2. Create an `update_record` based on the code in 
https://github.com/risinglightdb/sqllogictest-rs/blob/d753e4c77fbf00cdaab69477df2e9c3dba3f5fcc/sqllogictest-bin/src/lib.rs#L620
 that updates a `Record` with the output of `RecordOutput`
   
   
   ```rust
   /// Update record using output. If this record is then
   ///
   fn update_output(record: output: RecordOutput) -> Result<Record> {
   ...
   ```
   
   Then it will be possible to write code like
   
   ```rust
   for record in input_records {
       let record_output =  runner.apply_record(record.clone()).await?;
       let new_record = update_record(record, record_output)
       write!(output_file, "{}", new_record)
   }
   ```
   To write out the new file
   
   cc @xxchan and @xudong963 
   


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