rluvaton commented on code in PR #15700:
URL: https://github.com/apache/datafusion/pull/15700#discussion_r2041878079


##########
datafusion/physical-plan/src/sorts/sort.rs:
##########
@@ -431,12 +422,16 @@ impl ExternalSorter {
         let batches_to_spill = std::mem::take(globally_sorted_batches);
         self.reservation.free();
 
-        let in_progress_file = 
self.in_progress_spill_file.as_mut().ok_or_else(|| {
-            internal_datafusion_err!("In-progress spill file should be 
initialized")
-        })?;
+        let (in_progress_file, max_record_batch_size) =
+            self.in_progress_spill_file.as_mut().ok_or_else(|| {
+                internal_datafusion_err!("In-progress spill file should be 
initialized")
+            })?;
 
         for batch in batches_to_spill {
             in_progress_file.append_batch(&batch)?;
+
+            *max_record_batch_size =
+                (*max_record_batch_size).max(batch.get_actually_used_size());

Review Comment:
   I'm trying to reproduce that so I can better answer, how do you create that 
string view array so it will cause what you said?



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