j1cs commented on issue #26003:
URL: https://github.com/apache/beam/issues/26003#issuecomment-1509352085
works fin with row:
```javascript
public void run() {
AppOptions options = PipelineOptionsFactory
.fromArgs("--runner=DirectRunner")
.as(AppOptions.class);
Pipeline p = Pipeline.create(options);
p.apply("Selecting", JdbcIO.readRows()
.withDataSourceConfiguration(JdbcIO.DataSourceConfiguration.create(
"org.postgresql.Driver",
"jdbc:postgresql://localhost:5432/main")
.withUsername("myuser")
.withPassword("mypassword"))
.withQuery("select first_name, last_name from person
where first_name = 'john'")
.withOutputParallelization(false)
)
.apply("next step", MapElements.via(new RowToStringFunction()));
p.run();
}
@Slf4j
static class RowToStringFunction extends SimpleFunction<Row, Integer> {
@Override
public Integer apply(Row input) {
log.info("Row value: {}", input.getValue(1).toString());
return 1;
}
}
```
```
18:14:47.650 [main] INFO i.m.context.env.DefaultEnvironment - Established
active environments: [cli]
18:14:50.355 [direct-runner-worker] INFO org.apache.beam.sdk.io.jdbc.JdbcIO
- Autocommit has been disabled
18:14:50.513 [direct-runner-worker] INFO m.j.AppCommand$RowToStringFunction
- Row value: doe
```
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