DerGut commented on code in PR #15692:
URL: https://github.com/apache/datafusion/pull/15692#discussion_r2041181467
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datafusion/physical-plan/src/sorts/sort.rs:
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@@ -529,6 +523,12 @@ impl ExternalSorter {
/// Sorts the in-memory batches and merges them into a single sorted run,
then writes
/// the result to spill files.
async fn sort_and_spill_in_mem_batches(&mut self) -> Result<()> {
+ if self.in_mem_batches.is_empty() {
Review Comment:
Makes a lot of sense to me! Its now returning an error with
https://github.com/apache/datafusion/pull/15692/commits/5c3502d6fbe3136f0435afb90fa99b5af742d914
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