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planner, sessionctx : Add 'last_plan_from_binding' to help know whether sql's plan is matched with the hints in the binding (#18017) #21430

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Merged
merged 6 commits into from
Mar 12, 2021
Merged

planner, sessionctx : Add 'last_plan_from_binding' to help know whether sql's plan is matched with the hints in the binding (#18017) #21430

merged 6 commits into from
Mar 12, 2021

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cherry-pick #18017 to release-4.0

What problem does this PR solve?

Issue Number: close #16425

Problem Summary:
Add last_plan_from_binding to help know whether sql's plan is matched with the hints in the binding

What is changed and how it works?

What's Changed:

  • add a session scope system variable last_plan_from_binding to help decide whether the plan cache got hit.
  • display the last_plan_from_binding in slow log and statement summary table

Check List

Related changes

  • PR to update pingcap/docs/pingcap/docs-cn

  • Unit test

  • Integration test

Release note

  • Add 'last_plan_from_binding' to help know whether sql's plan is matched with the hints in the binding

@Reminiscent @ti-srebot
cherry pick pingcap#18017 to release-4.0
824d8f1 
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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/run-all-tests

@ti-srebot ti-srebot mentioned this pull request Dec 2, 2020
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@ti-srebot ti-srebot added this to the 4.0.0 milestone Dec 2, 2020
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@Reminiscent you're already a collaborator in bot's repo.

@Reminiscent Reminiscent mentioned this pull request Dec 2, 2020
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@eurekaka @zz-jason PTAL. Thanks!

eurekaka
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LGTM

@ti-srebot ti-srebot added the status/LGT1 Indicates that a PR has LGTM 1. label Dec 2, 2020
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eurekaka commented Dec 2, 2020

/run-all-tests

qw4990
qw4990 approved these changes Dec 2, 2020
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LGTM

@ti-srebot ti-srebot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Dec 2, 2020
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/merge

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Sorry @Reminiscent, this branch's release version is in progress, please contact zhouqiang-cl,shuke987,jebter,you06 for more details.

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@ti-srebot, please update your pull request.

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@ti-srebot, please update your pull request.

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@ti-srebot PR closed due to no update for a long time. Feel free to reopen it anytime.

@ti-srebot ti-srebot closed this Jan 1, 2021
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/reopen

@ti-chi-bot ti-chi-bot reopened this Mar 12, 2021
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@Reminiscent: Reopened this PR.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

@ti-chi-bot ti-chi-bot added needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Mar 12, 2021
@Reminiscent
Merge branch 'release-4.0' of https://github.com/pingcap/tidb into ti…
0e85844 
…-srebot/release-4.0-2c66371d8b7e

� Conflicts:
�	bindinfo/bind_test.go
�	go.mod
�	infoschema/tables_test.go
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fix conflicts
d07debf
@ti-chi-bot ti-chi-bot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Mar 12, 2021
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qw4990 commented Mar 12, 2021

/merge

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This pull request has been accepted and is ready to merge.

Commit hash: d07debf

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Mar 12, 2021
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/run-integration-copr-test

@qw4990 qw4990 merged commit 5edebf9 into pingcap:release-4.0 Mar 12, 2021
@zhouqiang-cl zhouqiang-cl modified the milestones: 4.0.0, v4.0.12 Mar 26, 2021
@qw4990 qw4990 mentioned this pull request Mar 26, 2021
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@eurekaka eurekaka eurekaka left review comments

@qw4990 qw4990 qw4990 approved these changes

@zz-jason zz-jason Awaiting requested review from zz-jason

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component/executor contribution This PR is from a community contributor. sig/execution SIG execution sig/planner SIG: Planner sig/sql-infra SIG: SQL Infra size/L Denotes a PR that changes 100-499 lines, ignoring generated files. status/can-merge Indicates a PR has been approved by a committer. status/LGT2 Indicates that a PR has LGTM 2. type/4.0-cherry-pick
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