hveiga commented on issue #12560:
URL: https://github.com/apache/datafusion/issues/12560#issuecomment-2372045464
Just to add to the visibility: we are also observing the same behavior after
updating to `42.0.0`. This is the error message we are getting, to help with
debugging:
```
Caused by:
0: Arrow error: Invalid argument error: Column 'column1' is declared as
non-nullable but contains null values
1: Invalid argument error: Column 'column1' is declared as non-nullable
but contains null values
```
We are getting this error when reading some parquet files using Datafusion.
I have verified with other tools (parquet cli, DuckDB) `column1` does not
contain any null values and metadata of the files is correct.
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