westonpace commented on issue #32991:
URL: https://github.com/apache/arrow/issues/32991#issuecomment-1419959805
I plan to start working on this task. However, it is quite large. I plan
on breaking it up into the following tasks:
- [ ] Add batch index to ExecNode, Create a fetch node (this will serve as
an example of how a batch index can work)
- [ ] Add batch index to the scanner
- [ ] Add the concept of "ordering" to an exec node, reject non-sensible
plans
- [ ] Update existing nodes to respect ordering and batch index (at this
point "fetch" will be usable in larger plans)
- [ ] Add bindings for fetch to substrait consumer
- [ ] Add an order-by node which can modify an ordering
- [ ] Deprecate old DeclarationToXyz methods
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