ericphanson commented on issue #506:
URL: https://github.com/apache/arrow-julia/issues/506#issuecomment-2127147432
The workaround is to ask DataFrames to copy the columns:
```julia
DataFrame(Arrow.Table("/tmp/test.arrow")); copycols=true)
```
The reason for the current behavior is:
- `Arrow.Table` exposes an immutable view of the underlying byte-buffer (for
e.g. 0-copy reads from mmap'd data)
- `DataFrame` accepts arbitrary vectors as columns (again to support things
like 0-copy reads)
- the naive composition therefore results in immutable columns and confusing
errors
(not saying it is ideal, just how/why we got here)
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