execdetails: add statistical data of table scanning of TiFlash

[JinheLin]

What problem does this PR solve?

Issue Number: ref #51727

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  • Use explain analyze to check the details of TableScanning.
  • An example

mysql> explain analyze select max(ol_o_id) from order_line where ol_dist_info < '0Fvf5TLWcqdvYC2IeTcQjgMs';
+--------------------------------+------------+---------+--------------+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------+-----------+------+
| id                             | estRows    | actRows | task         | access object    | execution info                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | operator info                                                                                     | memory    | disk |
+--------------------------------+------------+---------+--------------+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------+-----------+------+
| StreamAgg_10                   | 1.00       | 1       | root         |                  | time:772.7ms, loops:2, RU:455322.194336                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | funcs:max(tpcc.order_line.ol_o_id)->Column#12                                                     | 1.02 KB   | N/A  |
| └─TopN_13                      | 1.00       | 1       | root         |                  | time:772.7ms, loops:2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | tpcc.order_line.ol_o_id:desc, offset:0, count:1                                                   | 304 Bytes | N/A  |
|   └─TableReader_25             | 1.00       | 144     | root         |                  | time:772.7ms, loops:3, cop_task: {num: 146, max: 0s, min: 0s, avg: 0s, p95: 0s, copr_cache_hit_ratio: 0.00}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | MppVersion: 2, data:ExchangeSender_24                                                             | 571 Bytes | N/A  |
|     └─ExchangeSender_24        | 1.00       | 144     | mpp[tiflash] |                  | tiflash_task:{proc max:770.1ms, min:703.5ms, avg: 736.8ms, p80:770.1ms, p95:770.1ms, iters:144, tasks:2, threads:144}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | ExchangeType: PassThrough                                                                         | N/A       | N/A  |
|       └─TopN_23                | 1.00       | 144     | mpp[tiflash] |                  | tiflash_task:{proc max:769.1ms, min:702.5ms, avg: 735.8ms, p80:769.1ms, p95:769.1ms, iters:144, tasks:2, threads:144}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | tpcc.order_line.ol_o_id:desc, offset:0, count:1                                                   | N/A       | N/A  |
|         └─TableFullScan_21     | 5259869.34 | 2488186 | mpp[tiflash] | table:order_line | tiflash_task:{proc max:769.1ms, min:702.5ms, avg: 735.8ms, p80:769.1ms, p95:769.1ms, iters:9075, tasks:2, threads:144}, tiflash_scan:{dtfile:{data_scanned_rows:600039322, data_skipped_rows:1355266, mvcc_scanned_rows:551821000, mvcc_skipped_rows:1015522, lm_filter_scanned_rows:601394701, lm_filter_skipped_rows:0, rs_index_check_time: 21ms, read_time: 43143ms, disagg_cache_hit_size: 0, disagg_cache_miss_size: 0}, delta_rows: 259517, delta_bytes: 24654115, mvcc_input_rows: 539026105, mvcc_input_bytes: 9163443785, mvcc_output_rows: 539026105, lm_skip_rows: 1355379, segment_num: 775, create_snapshot_time: 2ms, build_bitmap_time: 44912ms, build_inputstream_time: 54915ms, local_min_stream_cost: 686ms, local_max_stream_cost: 760ms, remote_min_stream_cost: 0ms, remote_max_stream_cost: 0ms, local_region_num: 776, remote_region_num: 0, stale_read_num: 0, learner_read_time: 10ms, region_balance_info: {instance_num: 2, max/min: 396/380=1.042105}} | pushed down filter:lt(tpcc.order_line.ol_dist_info, "0Fvf5TLWcqdvYC2IeTcQjgMs"), keep order:false | N/A       | N/A  |
+--------------------------------+------------+---------+--------------+------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------+-----------+------+
6 rows in set (0.78 sec)

tiflash_scan:{
	dtfile:{
		data_scanned_rows:600039322, 
		data_skipped_rows:1355266, 
		mvcc_scanned_rows:551821000, 
		mvcc_skipped_rows:1015522, 
		lm_filter_scanned_rows:601394701, 
		lm_filter_skipped_rows:0, 
		rs_index_check_time: 21ms, 
		read_time: 43143ms, 
		disagg_cache_hit_size: 0, 
		disagg_cache_miss_size: 0
	}, 
	delta_rows: 259517, 
	delta_bytes: 24654115, 
	mvcc_input_rows: 539026105, 
	mvcc_input_bytes: 9163443785, 
	mvcc_output_rows: 539026105, 
	lm_skip_rows: 1355379, 
	segment_num: 775, 
	create_snapshot_time: 2ms, 
	build_bitmap_time: 44912ms, 
	build_inputstream_time: 54915ms, 
	local_min_stream_cost: 686ms, 
	local_max_stream_cost: 760ms, 
	remote_min_stream_cost: 0ms, 
	remote_max_stream_cost: 0ms, 
	local_region_num: 776, 
	remote_region_num: 0, 
	stale_read_num: 0, 
	learner_read_time: 10ms, 
	region_balance_info: {instance_num: 2, max/min: 396/380=1.042105}
}

• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[tiprow]

Hi @JinheLin. Thanks for your PR.

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[JinheLin]

/hold

Don't merge this PR until pingcap/tipb#326 merged.

[JinheLin]

/build

[JinheLin]

/retest

[tiprow]

@JinheLin: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[breezewish]

/ok-to-test

[codecov]

Codecov Report

Merging #51726 (1364bbc) into master (02be83a) will decrease coverage by 15.8865%.
Report is 4 commits behind head on master.
The diff coverage is 84.1346%.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #51726         +/-   ##
=================================================
- Coverage   70.7883%   54.9019%   -15.8865%     
=================================================
  Files          1476       1582        +106     
  Lines        438120     603895     +165775     
=================================================
+ Hits         310138     331550      +21412     
- Misses       108641     249310     +140669     
- Partials      19341      23035       +3694     

Flag	Coverage Δ
integration	36.4687% <48.5576%> (?)
unit	70.4683% <84.1346%> (-0.1343%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	51.0948% <ø> (+5.1723%)	⬆️

[JinheLin]

/test build

[tiprow]

@JinheLin: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test fast_test_tiprow
• /test tidb_parser_test

Use /test all to run all jobs.

In response to this:

/test build

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[JinheLin]

Don't merge this PR until pingcap/tipb#326 merged and update tipb module after pingcap/tipb#326 merged.

[sre-bot]

All committers have signed the CLA.

[breezewish]

Generally LGTM. I think the name of the field should be carefully chosen, in order to keep readable, avoid ambiguity but also be short.

[JinheLin]

/retest

[windtalker]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: breezewish, windtalker

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-18 01:59:33.20088704 +0000 UTC m=+1255600.223133428: ☑️ agreed by breezewish.
• 2024-03-18 03:20:44.350184049 +0000 UTC m=+1260471.372430437: ☑️ agreed by windtalker.

[JinheLin]

/unhold

[hawkingrei]

/retest

[JaySon-Huang]

/cherry-pick release-7.5

[ti-chi-bot]

@JaySon-Huang: new pull request created to branch release-7.5: #52338.

In response to this:

/cherry-pick release-7.5

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