用Apache Beam覆盖在JdbcIO中生成的insert语句

import org.apache.beam.sdk.Pipeline;
import org.apache.beam.sdk.io.jdbc.JdbcIO;
import org.apache.beam.sdk.options.PipelineOptions;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.beam.sdk.transforms.Map;

public class JdbcIOExample {
  public static void main(String[] args) {
    PipelineOptions options = PipelineOptionsFactory.create();
    Pipeline pipeline = Pipeline.create(options);

    pipeline
      .apply(JdbcIO.<YourInputType>read()
        .withDataSourceConfiguration(JdbcIO.DataSourceConfiguration.create(
          "com.mysql.jdbc.Driver", "jdbc:mysql://your-database-url"))
        .withQuery("SELECT * FROM your_table"))
      .apply(Map.<YourInputType, YourOutputType>of(input -> {
        // 在这里修改生成的insert语句
        String modifiedInsertStatement = "INSERT INTO your_table_modified VALUES ...";
        return YourOutputType.from(input, modifiedInsertStatement);
      }))
      .apply(JdbcIO.<YourOutputType>write()
        .withDataSourceConfiguration(JdbcIO.DataSourceConfiguration.create(
          "com.mysql.jdbc.Driver", "jdbc:mysql://your-database-url"))
        .withStatement("INSERT INTO your_table_modified VALUES ..."));

    pipeline.run();
  }
}