gitmodimo commented on code in PR #44470:
URL: https://github.com/apache/arrow/pull/44470#discussion_r1824708588
##########
cpp/src/arrow/dataset/file_base.cc:
##########
@@ -539,8 +542,13 @@ Result<acero::ExecNode*> MakeWriteNode(acero::ExecPlan*
plan,
ARROW_ASSIGN_OR_RAISE(
auto node,
+ // to preserve order explicitly sequence the exec batches
+ // this requires exec batch index to be set upstream (e.g. by SourceNode)
acero::MakeExecNode("consuming_sink", plan, std::move(inputs),
-
acero::ConsumingSinkNodeOptions{std::move(consumer)}));
+ acero::ConsumingSinkNodeOptions{
+ std::move(consumer),
+ {},
+
/*sequence_output=*/write_options.preserve_order}));
Review Comment:
TeeNode needs the same treatment
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