jledrumics opened a new issue, #30753:
URL: https://github.com/apache/beam/issues/30753
### What happened?
Python Apache BEAM version 2.44
When using WriteToBigquery with STORAGE_WRITE_API method and some NULLABLE
nested field, even if the field is not in the input dict, or is None, the code
will try to resolve the inner fields and then fails. This is in the
`beam_row_from_dict` method.
A failing example there :
```python
from apache_beam.io.gcp.bigquery_tools import beam_row_from_dict
schema = {
"fields": [
{"name": "log_id", "type": "STRING", "mode": "REQUIRED"},
{
"name": "profilematch",
"type": "RECORD",
"mode": "NULLABLE",
"fields": [
{"name": "id", "type": "STRING", "mode": "REQUIRED"},
{"name": "source", "type": "STRING", "mode": "REQUIRED"},
{"name": "channel", "type": "STRING", "mode": "NULLABLE"},
],
},
]
}
row = {
"log_id": "727254-32022246-026",
"profilematch": None, # same when quoting the field
}
beam_row = beam_row_from_dict(row, schema)
print(beam_row)
```
### Issue Priority
Priority: 2 (default / most bugs should be filed as P2)
### Issue Components
- [X] Component: Python SDK
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