jubebo commented on issue #27166:
URL: https://github.com/apache/beam/issues/27166#issuecomment-1597257928
I.e. the feature request would enable calling
```python
beam.io.ReadFromBigQuery(
project="your-project",
dataset="your-dataset",
table="your-table"
method=beam.io.ReadFromBigQuery.Method.DIRECT_READ,
flatten_results=False,
output_type="BEAM_ROW"
)
```
for tables with nested entries - e.g. tables with the following schema
```
<TableSchema
fields: [
<TableFieldSchema
fields: []
name: 'primitive_1'
type: 'INTEGER'>,
<TableFieldSchema
fields: []
name: 'primitive_2'
type: 'STRING'>,
<TableFieldSchema
fields: [
<TableFieldSchema
fields: []
name: 'nested_lv1_1'
type: 'STRING'>,
<TableFieldSchema
fields: []
name: 'nested_lv1_2'
type: 'STRING'>,
<TableFieldSchema
fields: [
<TableFieldSchema
fields: []
name: 'nested_lv2_1'
type: 'STRING'>,
<TableFieldSchema
fields: []
name: 'nested_lv2_2'
type: 'FLOAT'>]
mode: 'REPEATED'
name: 'nested_lv1_3'
type: 'RECORD'>]
mode: 'REPEATED'
name: 'nested'
type: 'RECORD'>]>
```
This schema would be the input to
https://github.com/apache/beam/blob/5223ab466e78f403680a22036d3a769897d0cf9d/sdks/python/apache_beam/io/gcp/bigquery_schema_tools.py#L56
as discussed above.
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