collimarco commented on issue #34781:
URL: https://github.com/apache/arrow/issues/34781#issuecomment-1564506092
@kou Thanks! It works!
The only downside is that in my benchmark on a 100M log file I don't see any
performance gains.
Original Ruby program:
```
require 'arrow'
require 'parquet'
table = Arrow::Table.load('sample.parquet', format: :parquet)
puts table.slice { |slicer| slicer['status'] == 200 }
```
Improved Ruby program:
```
require 'arrow'
require 'parquet'
require 'arrow-dataset'
file = URI('sample.parquet')
table = Arrow::Table.load(file, filter: [:equal, :status, 200])
puts table
```
Measuring with the `time` command I get `~ 1.2s` for both versions.
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