alamb commented on issue #96:
URL: https://github.com/apache/arrow-rs/issues/96#issuecomment-826798378
Comment from Jorge Leitão(jorgecarleitao) @ 2020-08-23T21:51:08.856+0000:
<pre>That is a cool idea. It seems to be a case of algebraic simplification.
Maybe there is already a rust library that can do that work for us?</pre>
Comment from Remi Dettai(rdettai) @ 2020-12-08T14:11:11.412+0000:
<pre>This could also be used to apply filter pushdown into the catalog, if
the combination (and) of:
- the file/partition statistics ({{col( x ) > min and col( x ) < max}})
- the filter expression
can be simplified to {{false}}, their is no need to read that
file/partition. Isn't that wonderful ? :)
Note: there is an implementation of this folding for the C++ dataset API:
[https://github.com/apache/arrow/blob/master/cpp/src/arrow/dataset/filter.h]</pre>
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