zanmato1984 commented on issue #44513:
URL: https://github.com/apache/arrow/issues/44513#issuecomment-2556438531
I can now confirm that the problem does exist.
By applying filter and sum on the join result, I found my previous
non-segfault runs were false positive:
```
join = small.join(large, keys=['ID_DEV_STYLECOLOR_SIZE',
'ID_DEPARTMENT', 'ID_COLLECTION'], join_type='left outer')
print("join size: {0}".format(join.num_rows))
cond = pc.and_(pc.equal(join['ID_DEV_STYLECOLOR_SIZE'], 88506230299),
pc.equal(join['ID_DEPARTMENT'], 16556030299))
filtered = join.filter(cond)
print("filtered")
print(filtered)
sum = pc.sum(join['PL_VALUE'])
print("sum")
print(sum)
```
Result:
```
filtered: PL_VALUE: [[null]]
...
sum: 33609597 # Another run emits 33609997
```
And I also happen to have access to a x86 Ubuntu desktop, on which I
reproduced the segfault.
I'm now digging into it.
Also, considering the silent wrong answer on some platforms, I'm marking
this issue critical.
Thanks alot @kolfild26 for helping me to reproduce the issue!
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