如何更改hbase表扫描结果顺序

import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.filter.*;
import org.apache.hadoop.hbase.util.*;

// 创建表对象
HTable table = new HTable(config, "table_name");

// 创建Scan对象
Scan scan = new Scan();

// 创建过滤器对象
SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes.toBytes("column_family"), Bytes.toBytes("column_name"),
  CompareFilter.CompareOp.NO_OP, new BinaryComparator(Bytes.toBytes("")));

// 设置过滤器
filter.setFilterIfMissing(true);
filter.setReversed(true); // 设置排序顺序为降序

scan.setFilter(filter);

// 执行扫描操作
ResultScanner scanner = table.getScanner(scan);
for (Result result : scanner) {
  // 处理扫描结果
}

// 关闭资源
scanner.close();
table.close();

import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.coprocessor.*;
import org.apache.hadoop.hbase.util.*;

// 创建表对象
HTable table = new HTable(config, "table_name");

// 创建Scan对象
Scan scan = new Scan();

// 设置协处理器
scan.setFilter(new FirstKeyOnlyFilter());
table.coprocessorExec(MyCoprocessor.class, scan.getStartRow(), scan.getStopRow(), new Batch.Call<MyCoprocessor, List<String>>() {
  public List<String> call(MyCoprocessor instance) throws IOException {
    return instance.sortByColumn();
  }
});

// 执行扫描操作
ResultScanner scanner = table.getScanner(scan);
for (Result result : scanner) {
  // 处理扫描结果
}

// 关闭资源
scanner.close();
table.close();