executor: add pessimistic lock keys runtime information

[crazycs520]

What problem does this PR solve?

In pessimistic transaction, the statement maybe needs to lock keys, this PR add lock keys runtime information in executor runtime stats. Here is an example:

test> select tidb_decode_plan('8wTgMAkyOF81CTAJMAlOL0EJMAl0aW1lOjE0NS40MTA5MjVtcywgbG9vcHM6MSwgbG9ja19rZXlzOiB7BSggMzQuMDU2OTM4ASc0cmVnaW9uOjEwMjQsIGsBJhAyMDAyOA03NHJwYzozMjEuNzE4NzYxBTAccGNfY291bnQFMzR9CTI4LjQ1MzEyNSBLQgGNJAoxCTI2XzcJMAkBSGA5LjIyNTg5NTMxNjgwNglmb3IgdXBkYXRlBR4AOAm4IDUwLjUzNzgzNAFgAGwFtwQyMQFMAQQcCjIJMzFfMTBWUQA8ZGF0YTpTZWxlY3Rpb25fOS5XACAxMi42NzU5NDYuVwBELCBjb3BfdGFzazoge251bTogCfosbWF4OiA0LjI3N
   -> zc4BTFkbWluOiAyMy4xMsK1cywgYXZnOiA3Ny40NjYFECxwOTU6IDEyNS4xMTEFESh0b3RfcHJvYzogOQFwIScdXwEPJXxkIDc2LjkyNzY0NG1zfQkxNS4xOTQzMzU5Mzc1QRwzCTFfOQkxX1JCAUxsdCh0ZXN0LnQxLmEsIDQwMDAwKVEADDBucywtQEkYJE4vQQo0CTEwXzgJTzA1MjUxCXRhYmxlOnQxIe40ZXAgb3JkZXI6ZmFsc2VySAA=');
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_decode_plan('8wTgMAkyOF81CTAJMAlOL0EJMAl0aW1lOjE0NS40MTA5MjVtcywgbG9vcHM6MSwgbG9ja19rZXlzOiB7BSggMzQuMDU2OTM4ASc0cmVnaW9uOjEwMjQsIGsBJhAyMDAyOA03NHJwYzozMjEuNzE4NzYxBTAccGNfY291bnQFMzR9CTI4LjQ1MzEyNSBLQgGNJAoxCTI2XzcJMAkBSGA5LjIyNTg5NTMxNjgwNglmb3IgdX                                           |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     id                     task         estRows               operator info                 actRows    execution info                                                                                                                                                             memory              disk |
|     Update_5               root         0                     N/A                           0          time:145.410925ms, loops:1, lock_keys: {time:34.056938ms, region:1024, keys:20028, lock_rpc:321.718761ms, rpc_count:1024}                                                  28.453125 KB        N/A  |
|     └─SelectLock_7         root         20029.225895316806    for update                    20028      time:50.537834ms, loops:21                                                                                                                                                 N/A                 N/A  |
|       └─TableReader_10     root         20029.225895316806    data:Selection_9              20028      time:12.675946ms, loops:21, cop_task: {num: 1024, max: 4.277786ms, min: 23.12µs, avg: 77.466µs, p95: 125.111µs, tot_proc: 9ms, rpc_num: 1024, rpc_time: 76.927644ms}    15.1943359375 KB    N/A     |
|         └─Selection_9      cop[tikv]    20029.225895316806    lt(test.t1.a, 40000)          0          time:0ns, loops:0                                                                                                                                                          N/A                 N/A  |
|           └─TableScan_8    cop[tikv]    25251                 table:t1, keep order:false    0          time:0ns, loops:0                                                                                                                                                          N/A                 N/A  |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
test> select tidb_decode_plan('4ATwdTAJNl85CTAJMQlmdW5jczpjb3VudCgxKS0+Q29sdW1uIzQJMQl0aW1lOjUwLjgxNzg0MW1zLCBsb29wczoyLCBQYXJ0aWFsQ29uY3VycmVuY3k6NSwgRmluYWxDb25jdXJyZW5jeTo1LCBsb2NrX2tleXM6IHsFUSAyNS42OTc4MzYBUVhyZWdpb246MTAyNCwga2V5czoyMDAyOAFqQGNrX3JwYzoxNTQuNDM5NTA5BTAIcGNfBawFM2x9CTE4OS42ODc1IEtCCU4vQQoxCTI2XzEyCTAJAUhgOS4yMjU4OTUzMTY4MDYJZm9yIHVwZGF0ZQUeBDgJBZAYNTAuNzI0OTLhAAAxAU0BBBwKMgkzMl8xNFZRABhpbmRle
   -> DpJAQYsUmFuZ2VTY2FuXzEzLl4AHDE4LjcxNzc3Be4EbG8lP4gxLCBjb3BfdGFzazoge251bTogMSwgbWF4OjExLjE4NDU0NQHsDHByb2MtOggwLCAB+hErAQwFvAAgBTFMMTk4NW1zfQkyODEuMzA2NjQwNjI1EgwzCTEzAZQEMV9SFAEkdGFibGU6dDEsIAnNGGEoYSksIHIBzjA6Wy1pbmYsNDAwMDApIZ48ZXAgb3JkZXI6ZmFsc2UJMClAEDBucywgCdokMAlOL0EJTi9BCg==');
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_decode_plan('4ATwdTAJNl85CTAJMQlmdW5jczpjb3VudCgxKS0+Q29sdW1uIzQJMQl0aW1lOjUwLjgxNzg0MW1zLCBsb29wczoyLCBQYXJ0aWFsQ29uY3VycmVuY3k6NSwgRmluYWxDb25jdXJyZW5jeTo1LCBsb2NrX2tleXM6IHsFUSAyNS42OTc4MzYBUVhyZWdpb246MTAyNCwga2V5czoyMDAyOAFqQGNrX3JwYzoxNTQuNDM5NT                                                                     |
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     id                    task         estRows               operator info                                                 actRows    execution info                                                                                                                                                        memory              disk |
|     HashAgg_9             root         1                     funcs:count(1)->Column#4                                      1          time:50.817841ms, loops:2, PartialConcurrency:5, FinalConcurrency:5, lock_keys: {time:25.697836ms, region:1024, keys:20028, lock_rpc:154.439509ms, rpc_count:1024}    189.6875 KB         N/A  |
|     └─SelectLock_12       root         20029.225895316806    for update                                                    20028      time:50.724941ms, loops:21                                                                                                                                            N/A                 N/A  |
|       └─IndexReader_14    root         20029.225895316806    index:IndexRangeScan_13                                       20028      time:18.717776ms, loops:21, cop_task: {num: 1, max:11.184545ms, proc_keys: 0, rpc_num: 1, rpc_time: 11.181985ms}                                                      281.306640625 KB    N/A  |
|         └─IndexScan_13    cop[tikv]    20029.225895316806    table:t1, index:a(a), range:[-inf,40000), keep order:false    0          time:0ns, loops:0                                                                                                                                                     N/A                 N/A  |
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

What is changed and how it works?

Related changes

• Need to cherry-pick to the release branch

Check List

Tests

• Unit test
• Manual test

Side effects

• Performance regression
  • Consumes more CPU
  • Consumes more MEM

Release note

• Add pessimistic lock keys runtime information

[wjhuang2016]

lgtm

[qw4990]

LGTM

[qw4990]

/merge

[ti-srebot]

/run-all-tests

[ti-srebot]

@crazycs520 merge failed.

[zz-jason]

/merge

[ti-srebot]

/run-all-tests

[ti-srebot]

cherry pick to release-4.0 in PR #20199