case-k-git opened a new pull request #13960:
URL: https://github.com/apache/beam/pull/13960
**Please** add a meaningful description for your change here
I have executed python jdbc in Dataflow runner, and it worked when i use
runner_v2 options. please check it
```
from apache_beam.io.jdbc import ReadFromJdbc
import apache_beam as beam
from apache_beam.options.pipeline_options import PipelineOptions
from apache_beam.options.pipeline_options import DebugOptions
options = DebugOptions([
"--runner=DataflowRunner",
"--project=<project>",
"--job_name=unique-job",
"--temp_location=gs://<project>/tmp/",
"--region=us-central1",
"--experiments=use_runner_v2",
"--subnetwork=regions/us-central1/subnetworks/vpc-streaming-datatransfer",
])
worker_options = options.view_as(WorkerOptions)
worker_options.subnetwork='regions/us-central1/subnetworks/<subnet>'
jdbc='postgresql'
host='<host>'
port=5432
database='postgres'
table='<tablename>'
username='<username>'
password='<password>'
driver_class_name='org.postgresql.Driver'
p = beam.Pipeline(options=options)
jdbc_query_results = p | 'Read From Jdbc' >> ReadFromJdbc2(
table_name=table,
driver_class_name=driver_class_name,
jdbc_url='jdbc:{}://{}:{}/{}'.format(jdbc, host, port, database),
username=username,
password=password)
jdbc_query_results | 'write' >>
beam.io.WriteToText('gs://<backet>/output.txt',num_shards=1)
p.run()
```
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