tustvold commented on issue #6821:
URL: https://github.com/apache/arrow-rs/issues/6821#issuecomment-2509789951
This indeed looks like a bug, and should be a relatively straightforward
fix. The issue can be clearly seen when one compares the logic for StringArray
with DictionaryArray
```
rows.iter()
.map(|row| {
let s = row.get(i);
(!null_regex.is_null(s)).then_some(s)
})
.collect::<StringArray>(),
```
vs
```
rows.iter()
.map(|row| row.get(i))
.collect::<DictionaryArray<Int8Type>>(),
```
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