pitrou commented on a change in pull request #8890:
URL: https://github.com/apache/arrow/pull/8890#discussion_r542191830
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File path: cpp/src/arrow/compute/kernels/vector_sort.cc
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@@ -834,6 +1355,10 @@ class TableRadixSorter {
// Sort a table using a single sort and multiple-key comparisons.
class MultipleKeyTableSorter : public TypeVisitor {
private:
+ // TODO instead of resolving chunks for each column independently, we could
+ // split the table into RecordBatches and pay the cost of chunked indexing
+ // at the first column only.
Review comment:
`TableBatchReader` can be used for that.
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