java - 如何使用客户端库 (java) 在 Google BigQuery 中加载 csv 数据时跳过标题行

Question

将 csv 数据加载到 bigquery 表时，Web UI/python 客户端库等中有跳过标题行选项。 How to skip rows of csv file in BIGQUERY load API 但我在 BigQuery 的 Java 客户端库中找不到类似的选项。 目前我的代码如下

public long writeFileToTable(String datasetName, String tableName, InputStream inStream, String location)
          throws IOException, InterruptedException,TimeoutException {
        // [START bigquery_load_from_file]
        BigQuery bigquery =BigQueryOptions.getDefaultInstance().getService();
        TableId tableId = TableId.of(datasetName, tableName);
        WriteChannelConfiguration writeChannelConfiguration =
            WriteChannelConfiguration.newBuilder(tableId)               
            .setFormatOptions(FormatOptions.csv())

            .build();
        // The location must be specified; other fields can be auto-detected.
        JobId jobId = JobId.newBuilder().setLocation(location).build();
        TableDataWriteChannel writer = bigquery.writer(jobId, writeChannelConfiguration);
        // Write data to writer
        try (OutputStream stream = Channels.newOutputStream(writer)) {

          IOUtils.copy(inStream, stream);
        }
        // Get load job
        Job job = writer.getJob();

        job = job.waitFor();

        LoadStatistics stats = job.getStatistics();
        return stats.getOutputRows();
        // [END bigquery_load_from_file]
      }

但这也在表中写入头记录。我假设 WriteChannelConfiguration 中应该提供某种方法来执行此操作。但没找到

Answer 1

抱歉，我找到了如下选项

WriteChannelConfiguration writeChannelConfiguration =
            WriteChannelConfiguration.newBuilder(tableId)               
            .setFormatOptions(CsvOptions.newBuilder().setSkipLeadingRows(1).build())                
            .build();