alamb commented on code in PR #8006:
URL: https://github.com/apache/arrow-datafusion/pull/8006#discussion_r1380626690
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datafusion/physical-plan/src/common.rs:
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@@ -373,6 +375,38 @@ pub fn batch_byte_size(batch: &RecordBatch) -> usize {
batch.get_array_memory_size()
}
+/// Constructs the mapping between a projection's input and output
+pub fn calculate_projection_mapping(
Review Comment:
FWIW I hacked up a version here and it worked great:
https://github.com/apache/arrow-datafusion/pull/8033
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