这是获取任意一个索引外的字段
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| id | estRows | actRows | task | access object | execution info | operator info | memory | disk |
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| Projection_8 | 9.33 | 20 | root | | time:4.92s, loops:2, Concurrency:OFF | blued.viewpoints_information_v2.uuid, blued.viewpoints_information_v2.id | 1.82 KB | N/A |
| └─TopN_11 | 9.33 | 20 | root | | time:4.92s, loops:2 | blued.viewpoints_information_v2.event_time:desc, offset:0, count:20 | 95.6 KB | N/A |
| └─IndexLookUp_28 | 9.33 | 907853 | root | | time:4.89s, loops:889, index_task: {total_time: 4.5s, fetch_handle: 919.1ms, build: 68.8µs, wait: 3.58s}, table_task: {total_time: 19.4s, num: 54, concurrency: 4} | | 18.1 MB | N/A |
| ├─IndexRangeScan_26(Build) | 9.33 | 907853 | cop[tikv] | table:viewpoints_information_v2, index:list(uid, type, event_time) | time:883.6ms, loops:894, cop_task: {num: 2, max: 1.06s, min: 57.8ms, avg: 556.8ms, p95: 1.06s, max_proc_keys: 803892, p95_proc_keys: 803892, tot_proc: 1.08s, rpc_num: 2, rpc_time: 1.11s, copr_cache_hit_ratio: 0.00}, tikv_task:{proc max:428ms, min:50ms, p80:428ms, p95:428ms, iters:896, tasks:2}, scan_detail: {total_process_keys: 907853, total_keys: 907857} | range:[6 2,6 2], [6 4,6 4], [6 5,6 5], keep order:false | N/A | N/A |
| └─TableRowIDScan_27(Probe) | 9.33 | 907853 | cop[tikv] | table:viewpoints_information_v2 | time:17.5s, loops:946, cop_task: {num: 26097, max: 143.1ms, min: 334.6µs, avg: 9.49ms, p95: 26.2ms, max_proc_keys: 679, p95_proc_keys: 125, tot_proc: 2m20.1s, tot_wait: 1m29.3s, rpc_num: 26097, rpc_time: 4m7.3s, copr_cache_hit_ratio: 0.00}, tikv_task:{proc max:68ms, min:0s, p80:7ms, p95:14ms, iters:37674, tasks:26097}, scan_detail: {total_process_keys: 901162, total_keys: 926136} | keep order:false | N/A | N/A |
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5 rows in set (4.95 sec)