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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/08/09 15:22:07 UTC
[GitHub] [arrow-datafusion] Dandandan commented on issue #843: Incorrect results for joins on hash collisions
Dandandan commented on issue #843:
URL: https://github.com/apache/arrow-datafusion/issues/843#issuecomment-895315439
Interesting approach! I will look at this later to solve it if you don't beat me to it.
Based on the value I think a bug triggers with handling of NULL values.
```
match (left_array.is_null($left), left_array.is_null($right)) {
(false, false) => left_array.value($left) == right_array.value($right),
_ => false,
}
```
This looks suspicious, at least this should be `right_array` for the second value.
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