Dandandan commented on issue #7871:
URL:
https://github.com/apache/arrow-datafusion/issues/7871#issuecomment-1833468983
We have a similar use-case for pushing down TopK down to a column.
The idea is to push down TopK to a column, so we can reduce the scan by only
fetching/decoding rows matching the TopK rows.
```
TopK
Scan
```
->
```
Scan (RowFilter column in (TopK column))
```
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