如何总结表（element-ui）中的行跨度

Question

我知道表格元素有汇总方法。我的问题是，有没有可能实现行跨摘要的方法？

我的想法是重新扫描表数据，并为行跨记录插入新数据：对于相同的ID，我需要插入一个新的摘要记录。因此，表数据应具有3个新的摘要记录

  tableData: [{
     id: '12987122',
     name: 'Tom',
     amount1: '234',
     amount2: '3.2',
     amount3: 10
   }, {
     id: '12987122',
     name: 'Tom',
     amount1: '165',
     amount2: '4.43',
     amount3: 12
   }, {
     id: '12987124',
     name: 'Tom',
     amount1: '324',
     amount2: '1.9',
     amount3: 9
   }, {
     id: '12987124',
     name: 'Tom',
     amount1: '621',
     amount2: '2.2',
     amount3: 17
   }, {
     id: '12987126',
     name: 'Tom',
     amount1: '539',
     amount2: '4.1',
     amount3: 15
   }],

重置表数据后

  tableData: [{
     id: '12987122',
     name: 'Tom',
     amount1: '234',
     amount2: '3.2',
     amount3: 10
   }, {
     id: '12987122',
     name: 'Tom',
     amount1: '165',
     amount2: '4.43',
     amount3: 12
   }, {
     id: '12987122',
     name: 'summary',
     amount1: 'xxx',
     amount2: 'xxx',
     amount3: xxx
   }, {
     id: '12987124',
     name: 'Tom',
     amount1: '324',
     amount2: '1.9',
     amount3: 9
   }, {
     id: '12987124',
     name: 'Tom',
     amount1: '621',
     amount2: '2.2',
     amount3: 17
   }, {
     id: '12987124',
     name: 'summary',
     amount1: 'xxx',
     amount2: 'xxx',
     amount3: xxx
   }, {
     id: '12987126',
     name: 'Tom',
     amount1: '539',
     amount2: '4.1',
     amount3: 15
   }, {
     id: '12987126',
     name: 'Summary',
     amount1: 'xxx',
     amount2: 'xxx',
     amount3: xxx
   }],

我认为这可能不是一个好的解决方案。任何想法？ 预期结果应有3个新行作为摘要