grbinho commented on issue #1728:
URL:
https://github.com/apache/iceberg-python/issues/1728#issuecomment-2693685593
Hi @Fokko
I'm doing this
```
mapped_data = [self.mapper(item, self.export_id, self.export_timestamp) for
item in data]
arrow_data = pa.Table.from_pylist(mapped_data, schema =
self.schema.as_arrow())
...
if arrow_data:
with table.transaction() as tx:
tx.append(arrow_data)
else:
...
```
`self.mapper` maps the data so it matches the schema field names.
`self.schema` holds the iceberg schema for the data.
And that is it.
Maybe this `self.schema.as_arrow()` is causing problems?
What I was seeing as error was mismatch in field Ids for lists and their
`element` field.
I will try removing that call later today if I get the chance and test that.
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