westonpace commented on issue #35301:
URL: https://github.com/apache/arrow/issues/35301#issuecomment-1538996520
> So like the current FetchNode, but then using an array of indices instead
of a slice as input argument? (and omitting vs selecting)
Yes, it would need a sequencing queue like the fetch node and the process
function would be something like...
```
row_start = current_offset;
row_end = row_start + batch.length;
deleted_indices = get_deleted_indices_in_range(row_start, row_end)
if deleted_indices:
normalized = deleted_indices - row_start
kept_indices = range(0, batch.length) - normalized
batch = batch.take(kept_indices)
output.input_received(batch)
```
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