mattmartin14 commented on PR #1534:
URL: https://github.com/apache/iceberg-python/pull/1534#issuecomment-2634290851
@Fokko - as an FYI, i do have working code to just use pyarrow to identify
rows to insert; for rows to update, its a little more tricky; would you like me
to replace the existing data fusion function on the rows_to_insert part with my
pyarrow code? FYI, this is the code I could implement:
```python
def get_rows_not_in_target(source_table: pa.Table, target_table: pa.Table,
join_cols: list) -> pa.Table:
return source_table.join(target_table, keys=join_cols, join_type='left
anti')
```
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