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partitioning: Corrected partition management #5498

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merged 8 commits into from
Jul 23, 2021

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@mjonss mjonss commented Apr 26, 2021

Clarified currently supported partitioning management, and added experimental feature EXCHANGE PARTITION.
Fixes #5424

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What is changed, added or deleted? (Required)

Clarified currently supported partitioning management, and added experimental feature EXCHANGE PARTITION.
Fixes #5424
It mentioned split, merge and redefine, which is not clear what operations it refers to (REORGANIZE PARTITION, which is not supported)

Which TiDB version(s) do your changes apply to? (Required)

  • master (the latest development version)
  • v5.0 (TiDB 5.0 versions)
  • v4.0 (TiDB 4.0 versions)
  • v3.1 (TiDB 3.1 versions)
  • v3.0 (TiDB 3.0 versions)
  • v2.1 (TiDB 2.1 versions)

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@ti-chi-bot ti-chi-bot added the first-time-contributor Indicates that the PR was contributed by an external member and is a first-time contributor. label Apr 26, 2021
@ti-chi-bot ti-chi-bot added missing-translation-status This PR does not have translation status info. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Apr 26, 2021
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/cc @crazycs520 @tiancaiamao @qw4990
/label needs-cherry-pick-5.0
/translation doing
/assign @Liuxiaozhen12

@ti-chi-bot ti-chi-bot added the translation/doing This PR's assignee is translating this PR. label Apr 26, 2021
@ti-chi-bot ti-chi-bot added needs-cherry-pick-5.0 and removed missing-translation-status This PR does not have translation status info. labels Apr 26, 2021
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@qw4990 @tiancaiamao Could you please take a look? Thanks!

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/LGTM

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label May 12, 2021
>
> - It works by swapping a partition and a non-partitioned table, similar to how renaming a table like `RENAME TABLE t1 TO t1_tmp, t2 TO t1, t1_tmp TO t2` works.
>
> - `ALTER TABLE partitioned_table EXCHANGE PARTITION p1 WITH TABLE non_partitioned_table`
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What does this statement mean?

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Changed it to an example:
As an example: `ALTER TABLE partitioned_table EXCHANGE PARTITION p1 WITH TABLE non_partitioned_table`, swaps the table `non_partitioned_table` with the partition `p1` in the `partitioned_table` table.

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@TomShawn TomShawn added the status/require-change Needs the author to address comments. label Jun 2, 2021
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TomShawn commented Jun 2, 2021

@mjonss Could you please take a look at the comments above? Thanks!

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> **Warning:**
>
> - `EXCHANGE PARTITION` is an experimental feature. It is not recommended to use it in a production environment. To enable it, set the `tidb_enable_exchange_partition` system variable to `ON`.
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  • Warning notes are used to provide additional information to the content above. There seems no mention of EXCHANGE PARTITION before this warning note.
  • The warning note only serves as a reminder or alert, and should be concise enough. One or two sentences should be enough. Detailed explanation or even example are not recommended. Could you consider putting some of the information out of the warning note?

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LGTM

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@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Jul 23, 2021
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/rebase

mjonss and others added 8 commits July 23, 2021 08:43
Clarified currently supported partitioning management, and added experimental feature EXCHANGE PARTITION.
Fixes pingcap#5424
According to TomShawn's suggestion, to better English.

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>
Better formatting for EXCHANGE PARTITION (not yet GA feature).

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>
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/merge

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

Commit hash: 2ca3928

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Jul 23, 2021
@ti-chi-bot ti-chi-bot merged commit 20dc083 into pingcap:master Jul 23, 2021
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In response to a cherrypick label: new pull request created: #6026.

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In response to a cherrypick label: new pull request created: #6027.

@mjonss mjonss deleted the mjonss/issue-5424 branch July 23, 2021 09:15
@Liuxiaozhen12 Liuxiaozhen12 added translation/done This PR has been translated from English into Chinese and updated to pingcap/docs-cn in a PR. and removed translation/doing This PR's assignee is translating this PR. labels Aug 11, 2021
TomShawn added a commit that referenced this pull request Oct 8, 2021
* Dumping default consistency description (#5985)

* update max-replicas description (#5984)

* Remove the swappiness parameter (#5987)

* system-variables: update for consistency (#5826)

* Change tidb_memory_usage_alarm_ratio scope to instance (#5988)

* Punctuation fix: Replace 。with . (#6002)

* index page: updated the phase of TiDB Cloud from Beta to Public Preview (#6014)

* Migration FAQs: added the FAQ links of the migration related tools (#6010)

* TiUP cluster: update data_dir (#6009)

* Add kafka downstream example (#6005)

* TiKV configuration: Update description for pin-l0-filter-and-index-blocks (#6008)

* Update the default value of tidb_stmt_summary_max_stmt_count (#6021) (#6023)

* update docs related to partition table dynamic mode (#5997)

* partitioning: Corrected partition management (#5498)

* TiDB binlog: update descriptions about commit ts and passoword (#5986)

* releases: add tidb 4.0.14 release notes (#5996)

* fix a typo for sync_diff_inspector (#6041)

* Update dashboard FAQ (#5895)

* update stale read doc for ga (#6047)

* configure-time-zone: mention `system_time_zone` (#6032)

* Update Security Compatibility with MySQL (#5921)

* correct document of using br backup and restore system tables (#6057)

* Add description about telemetry of builtin functions usage (#6028)

* Add TiDB Dashboard session docs (#6058)

* update br faq (#6060)

* releases: add TiDB 5.1.1 release notes (#6030)

* grafana-overview-dashboard: update the monitoring item for CPS (#6066)

* deploy-tidb-binlog: make the expression on deployment clearer (#6073)

* Add documentation on how to modify gcttl by tiup (#6071)

* remove useless variable (#6076)

* ticdc: add mysql sink user privilege (#6072)

* deleted roadmap.md (#6079)

* TiDB Monitoring Metrics: remove a line (#6081)

* TiDB configuration: add a security option `require-secure-transport` (#6080)

* chore: lock plugin versions (#6089)

* cdc: add compatibility notes for sort-dir (#6086)

* Add gc ttl (#6102) (#6103)

* 5.1.0 release notes: Fix link to telemetry docs (#6106)

* sql-statement-select: Add '...FOR UPDATE NOWAIT' (#6085)

* TiCDC: update a golang demo link (#6055)

* br/use-br-command-line-tool: supplement br note (#6000)

* pr_template: Provides tips for cherry-pick (#6042)

* pr_template: Provides tips for cherry-pick

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

* TiDB monitoring: add table storage info status api (#6110)

* update doc for Oracle translate function (#6053)

* ticdc: add explicit_defaults_for_timestamp compatibility troubleshoot (#6115)

* Add print the bad sst files and related information for tikv-ctl (#6109)

* add a missing note (#6129)

* Add docs for auto-tls setting (#6125)

* TiFlash: remove outdated tune advise (#6133)

* TiDB lightning: remove default backend setting (#6132)

* tidb-scheduling: fix typo (#6140)

* Suggest Log Redaction when using TDE (#6147)

* Add infoschema.referential_constraints (#6139)

* Add steps to get lightning goroutine (#6001)

* tiup: fix dead links (#6153)

* Deleted description about not supporting some features. (#6157)

* high-concurrency-best-practices: fix the support info of follower read (#6161)

* Update function list pushed down to tiflash (#6165)

* The `log_dir` should be the log directory (#6168)

* Make IP address of Monitoring & Grafana for Minimal Topology consistent (#6178)

* tikv: add storage flow control doc (#6173)

* TiDB configuration: update the default value of `stmt_max_count` (#6172)

* ticdc-open-api: add ticdc open api doc (#6186)

* System variables: update `broadcast_join_threshold_count` and `broadc… (#6181)

* Update tikv-configuration-file.md (#6180)

* TiFlash configuration: update `io_rate_limit` (#6176)

* Add information of hashAgg for memory control (#6171)

* Update description on rule based index selection (#6160)

* add dr auto sync (#6182)

* update doc for SPM (#6146)

* docs: update rereject leader docs (#6183)

* SQL statement, system variables: update expression indexes (#6185)

* Updated sql-plan-management.md (#6184)

* Introduced 2 new variables (#6159)

* Fix broken link in error codes doc and support doc (#6196)

* docs: fix format for TiKV and PD configuration file template invalid. (#6197)

* docs: separate query statement and result in two text boxes. (#6204) (#6205)

* adopters: add zhihu case study (#6207)

* Added descriptions about slow node detection (#6174)

* pd-control: add new config of balance-hot-region-scheduler (#6148)

* add notice about scaling in pd node (#6099)

* add example for expression index (#6215)

* adopters: remove 404 links (#6214)

* ticdc: fix wording (#6231)

* Revert "System variables: update `broadcast_join_threshold_count` and `broadc…" (#6232)

* Update documents of lock view for sprint 4 (#6179)

* ticdc-open-api: correct some error (#6239)

* best practices: add timeout options for Java best practices (#6136)

* update PR template for v5.2 (#6166)

* chore: stop building temporary (#6252)

* fix typo for sql-plan-management.md (#6248)

* alert rules: update some descriptions (#6250)

* Quick start: update version and TiUP playground supports M1 silicon (#6149)

* fix typo: relaod -> reload (#6235)

* tiny fix on index selection (#6265)

* add commands to check tikv user (#5999)

* br: add restore to systables (#6004)

* br: add restore to systables

* Apply suggestions from code review

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>

* statement summary: update statement summary doc (#6084)

* Require process privilege for dumpling (#6187)

* tiflash: Remove the description about expr_blacklist in use_tiflash.md (#6188)

* Add description about table name/alias specifying for read_from_storage hint (#6164)

* complex tidb binlog.yaml: add checkpoint info (#6216)

* TiKV configuration: remove redundant instructions (#6218)

* alert rules: remove some descriptions (#6223)

* Revert "add dr auto sync" (#6294)

* TiFlash Config: Add annotation (v5.2.0) (#6296)

* sql: improve kill's description (#6233)

* Add v5.2 TPCH report (#6170)

* docs: fix expression index's document again (#6295)

* system variables.md: add a warning message (#6298)

* sql-statement: Add ADMIN SHOW TELEMETRY (#6138)

* tiup: add notice about importing cluster (#6108)

* Bump version for v5.2.0 (#6191)

* add TiDB 5.2.0 release note (#6237)

* add two HTAP documents (#6206)

* benchmark: add v5.2 benchmark results (#6319)

* Fix title typo (#6324)

* release note: update feature description (#6325)

* adopters: add xiaomi (#6303)

* chore: migrate scripts to docs (#6338)

* credits: update links to the full list of code and docs contributors (#6111)

* TiUP: add instructions for offline mirror (#6137)

* tune tikv memory performance: remove description for sync-log (#6234)

* dashboard statement list: add a note to explain the blue bar and yellow line (#6189)

* release 5.1.0: add compatibility change for `tidb_enable_noop_functions` (#6222)

* modify configuration online: remove unsupported parameters (#6300)

* modify configuration online: change a name for consistency (#6301)

* Migrate from Aurora: update Aurora MySQL dumpling command (#6335)

* PD configuration file: add log level (#6302)

* TiDB Binlog config: update "syncer.to.checkpoint" info (#6340)

* update doc on wal-recovery-mode and use-direct-io-for-flush-and-compaction (#6163)

* Fix TOC display error (#6369)

* sql: fix the correctness problem about kill (#6377)

* change expressions related to statement summary tables (#6299)

* Update grafana-pd-dashboard.md (#6388)

* system variables: update description about `tidb_opt_prefer_range_scan` (#6389)

* Update alert rule for low space (#6376)

* chore: add dispatch back (#6404)

* Add description for TiKV Ready handled panel (#6375)

* TiKV config: fix wrong description about `compaction-readahead-size` (#6371)

* update transaction doc (#6158)

* BR FAQ: add a warning about multi br importing (#6263)

* Configuration Options: remove two TiDB's command options (#6370)

* system-variables: improve noop functions warning (#6374)

* add doc links to overview.md (#6422)

* chore: fix byte encode (#6428)

* performance_schema -> information_schema (#6418)

* chore: update ci scripts (#6429)

* Enhance TiDB login descriptions - EN (#6427)

* release-notes: add 5.2.1 release notes (#6438)

* basic features: add feature matrix (#6130)

* release note: add a check item for feedback-probability (#6405)

* Update system variables for correctness (#6224)

* encryption-at-rest: Update (#6152)

* basic-features: collapse charset and collations (#6452)

* system-variables: update from generated source (#6451)

* fix-enable-compaction-filter-in-tikv-configuration-file (#6403)

* Update the related variable description for CREATE INDEX (#6434)

* TiKV config: add 7 log-related congifurations (#6372)

* Configure placement rules: fix placement doc (#6450)

* adopters: add Pinterest (#6443)

* release-5.2.0: Add info about caching_sha2 (#6344)

* faq: add info for schema is changed error (#6453)

* Update enable-tls-between-clients-and-servers.md (#6493)

* adopters: remove Pinterest (#6501)

* Fix wrong wording in mysql-compatibility.md (#6511)

* adopters: add Huya Live (#6516)

* tidb-configuration-file: correct the default value of committer-concurrency (#6526)

* Tune TiKV: change the default value of `grpc-concurrency` (#6531)

* releases: add tidb 4.0.15 release notes (#6475)

* releases: add tidb 5.0.4 release notes (#6449)

* releases: add tidb 5.1.2 release notes (#6500)

* releases: add TiDB 5.1.2-10-06-33 release notes

* releases: add TiDB 5.1.2-10-06-33 release notes
* Update releases/release-5.1.2-10-06-33.md

* toc

* Apply suggestions from code review

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* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

* add notes from comments

* add more tidb notes

* Update releases/release-5.1.2.md

Co-authored-by: Yuanjia Zhang <qw4990@163.com>

* Apply suggestions from code review

* Apply suggestions from code review

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Co-authored-by: Enwei <jinenwei@pingcap.com>
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Co-authored-by: shichun-0415 <89768198+shichun-0415@users.noreply.github.com>

* replace pr numbers with issue numbers

* Update releases/release-5.1.2.md

Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>

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Co-authored-by: Enwei <jinenwei@pingcap.com>

* fix

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

* Apply suggestions from code review

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

Co-authored-by: Enwei <jinenwei@pingcap.com>

* Update releases/release-5.1.2.md

Co-authored-by: Grace Cai <qqzczy@126.com>

* Update releases/release-5.1.2.md

* Apply suggestions from code review

* Apply suggestions from code review

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

Co-authored-by: Enwei <jinenwei@pingcap.com>

* Update releases/release-5.1.2.md

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* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

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* move notes

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* remove a note about `raftstore.sync-log` (#6563)

* Add desc of "Storage Write Stall" row in the TiFlash grafana (#6524)

* system variables: update tidb_enable_noop_functions behavior (#6525)

* system variables: document last_insert_id (#6502)

* docs: update pd-configuration about upgrade (#6510)

* fix example for expression index (#6499)

* tidb: fix default value of performance.committer-concurrency (#6498)

* chore: remove circleci config (#6577)

* Document missing sysvars (#6485)

* system-variables: add skip-name-resolve (#6491)

* Document a few more system variables (#6492)

* add dr auto sync (#6592)

* Update from master

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TomShawn added a commit that referenced this pull request Oct 9, 2021
* Dumping default consistency description (#5985)

* update max-replicas description (#5984)

* Remove the swappiness parameter (#5987)

* system-variables: update for consistency (#5826)

* Change tidb_memory_usage_alarm_ratio scope to instance (#5988)

* Punctuation fix: Replace 。with . (#6002)

* index page: updated the phase of TiDB Cloud from Beta to Public Preview (#6014)

* Migration FAQs: added the FAQ links of the migration related tools (#6010)

* TiUP cluster: update data_dir (#6009)

* Add kafka downstream example (#6005)

* TiKV configuration: Update description for pin-l0-filter-and-index-blocks (#6008)

* Update the default value of tidb_stmt_summary_max_stmt_count (#6021) (#6023)

* update docs related to partition table dynamic mode (#5997)

* partitioning: Corrected partition management (#5498)

* TiDB binlog: update descriptions about commit ts and passoword (#5986)

* releases: add tidb 4.0.14 release notes (#5996)

* fix a typo for sync_diff_inspector (#6041)

* Update dashboard FAQ (#5895)

* update stale read doc for ga (#6047)

* configure-time-zone: mention `system_time_zone` (#6032)

* Update Security Compatibility with MySQL (#5921)

* correct document of using br backup and restore system tables (#6057)

* Add description about telemetry of builtin functions usage (#6028)

* Add TiDB Dashboard session docs (#6058)

* update br faq (#6060)

* releases: add TiDB 5.1.1 release notes (#6030)

* grafana-overview-dashboard: update the monitoring item for CPS (#6066)

* deploy-tidb-binlog: make the expression on deployment clearer (#6073)

* Add documentation on how to modify gcttl by tiup (#6071)

* remove useless variable (#6076)

* ticdc: add mysql sink user privilege (#6072)

* deleted roadmap.md (#6079)

* TiDB Monitoring Metrics: remove a line (#6081)

* TiDB configuration: add a security option `require-secure-transport` (#6080)

* chore: lock plugin versions (#6089)

* cdc: add compatibility notes for sort-dir (#6086)

* Add gc ttl (#6102) (#6103)

* 5.1.0 release notes: Fix link to telemetry docs (#6106)

* sql-statement-select: Add '...FOR UPDATE NOWAIT' (#6085)

* TiCDC: update a golang demo link (#6055)

* br/use-br-command-line-tool: supplement br note (#6000)

* pr_template: Provides tips for cherry-pick (#6042)

* pr_template: Provides tips for cherry-pick

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

* TiDB monitoring: add table storage info status api (#6110)

* update doc for Oracle translate function (#6053)

* ticdc: add explicit_defaults_for_timestamp compatibility troubleshoot (#6115)

* Add print the bad sst files and related information for tikv-ctl (#6109)

* add a missing note (#6129)

* Add docs for auto-tls setting (#6125)

* TiFlash: remove outdated tune advise (#6133)

* TiDB lightning: remove default backend setting (#6132)

* tidb-scheduling: fix typo (#6140)

* Suggest Log Redaction when using TDE (#6147)

* Add infoschema.referential_constraints (#6139)

* Add steps to get lightning goroutine (#6001)

* tiup: fix dead links (#6153)

* Deleted description about not supporting some features. (#6157)

* high-concurrency-best-practices: fix the support info of follower read (#6161)

* Update function list pushed down to tiflash (#6165)

* The `log_dir` should be the log directory (#6168)

* Make IP address of Monitoring & Grafana for Minimal Topology consistent (#6178)

* tikv: add storage flow control doc (#6173)

* TiDB configuration: update the default value of `stmt_max_count` (#6172)

* ticdc-open-api: add ticdc open api doc (#6186)

* System variables: update `broadcast_join_threshold_count` and `broadc… (#6181)

* Update tikv-configuration-file.md (#6180)

* TiFlash configuration: update `io_rate_limit` (#6176)

* Add information of hashAgg for memory control (#6171)

* Update description on rule based index selection (#6160)

* add dr auto sync (#6182)

* update doc for SPM (#6146)

* docs: update rereject leader docs (#6183)

* SQL statement, system variables: update expression indexes (#6185)

* Updated sql-plan-management.md (#6184)

* Introduced 2 new variables (#6159)

* Fix broken link in error codes doc and support doc (#6196)

* docs: fix format for TiKV and PD configuration file template invalid. (#6197)

* docs: separate query statement and result in two text boxes. (#6204) (#6205)

* adopters: add zhihu case study (#6207)

* Added descriptions about slow node detection (#6174)

* pd-control: add new config of balance-hot-region-scheduler (#6148)

* add notice about scaling in pd node (#6099)

* add example for expression index (#6215)

* adopters: remove 404 links (#6214)

* ticdc: fix wording (#6231)

* Revert "System variables: update `broadcast_join_threshold_count` and `broadc…" (#6232)

* Update documents of lock view for sprint 4 (#6179)

* ticdc-open-api: correct some error (#6239)

* best practices: add timeout options for Java best practices (#6136)

* update PR template for v5.2 (#6166)

* chore: stop building temporary (#6252)

* fix typo for sql-plan-management.md (#6248)

* alert rules: update some descriptions (#6250)

* Quick start: update version and TiUP playground supports M1 silicon (#6149)

* fix typo: relaod -> reload (#6235)

* tiny fix on index selection (#6265)

* add commands to check tikv user (#5999)

* br: add restore to systables (#6004)

* br: add restore to systables

* Apply suggestions from code review

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>

* statement summary: update statement summary doc (#6084)

* Require process privilege for dumpling (#6187)

* tiflash: Remove the description about expr_blacklist in use_tiflash.md (#6188)

* Add description about table name/alias specifying for read_from_storage hint (#6164)

* complex tidb binlog.yaml: add checkpoint info (#6216)

* TiKV configuration: remove redundant instructions (#6218)

* alert rules: remove some descriptions (#6223)

* Revert "add dr auto sync" (#6294)

* TiFlash Config: Add annotation (v5.2.0) (#6296)

* sql: improve kill's description (#6233)

* Add v5.2 TPCH report (#6170)

* docs: fix expression index's document again (#6295)

* system variables.md: add a warning message (#6298)

* sql-statement: Add ADMIN SHOW TELEMETRY (#6138)

* tiup: add notice about importing cluster (#6108)

* Bump version for v5.2.0 (#6191)

* add TiDB 5.2.0 release note (#6237)

* add two HTAP documents (#6206)

* benchmark: add v5.2 benchmark results (#6319)

* Fix title typo (#6324)

* release note: update feature description (#6325)

* adopters: add xiaomi (#6303)

* chore: migrate scripts to docs (#6338)

* credits: update links to the full list of code and docs contributors (#6111)

* TiUP: add instructions for offline mirror (#6137)

* tune tikv memory performance: remove description for sync-log (#6234)

* dashboard statement list: add a note to explain the blue bar and yellow line (#6189)

* release 5.1.0: add compatibility change for `tidb_enable_noop_functions` (#6222)

* modify configuration online: remove unsupported parameters (#6300)

* modify configuration online: change a name for consistency (#6301)

* Migrate from Aurora: update Aurora MySQL dumpling command (#6335)

* PD configuration file: add log level (#6302)

* TiDB Binlog config: update "syncer.to.checkpoint" info (#6340)

* update doc on wal-recovery-mode and use-direct-io-for-flush-and-compaction (#6163)

* Fix TOC display error (#6369)

* sql: fix the correctness problem about kill (#6377)

* change expressions related to statement summary tables (#6299)

* Update grafana-pd-dashboard.md (#6388)

* system variables: update description about `tidb_opt_prefer_range_scan` (#6389)

* Update alert rule for low space (#6376)

* chore: add dispatch back (#6404)

* Add description for TiKV Ready handled panel (#6375)

* TiKV config: fix wrong description about `compaction-readahead-size` (#6371)

* update transaction doc (#6158)

* BR FAQ: add a warning about multi br importing (#6263)

* Configuration Options: remove two TiDB's command options (#6370)

* system-variables: improve noop functions warning (#6374)

* add doc links to overview.md (#6422)

* chore: fix byte encode (#6428)

* performance_schema -> information_schema (#6418)

* chore: update ci scripts (#6429)

* Enhance TiDB login descriptions - EN (#6427)

* release-notes: add 5.2.1 release notes (#6438)

* basic features: add feature matrix (#6130)

* release note: add a check item for feedback-probability (#6405)

* Update system variables for correctness (#6224)

* encryption-at-rest: Update (#6152)

* basic-features: collapse charset and collations (#6452)

* system-variables: update from generated source (#6451)

* fix-enable-compaction-filter-in-tikv-configuration-file (#6403)

* Update the related variable description for CREATE INDEX (#6434)

* TiKV config: add 7 log-related congifurations (#6372)

* Configure placement rules: fix placement doc (#6450)

* adopters: add Pinterest (#6443)

* release-5.2.0: Add info about caching_sha2 (#6344)

* faq: add info for schema is changed error (#6453)

* Update enable-tls-between-clients-and-servers.md (#6493)

* adopters: remove Pinterest (#6501)

* Fix wrong wording in mysql-compatibility.md (#6511)

* adopters: add Huya Live (#6516)

* tidb-configuration-file: correct the default value of committer-concurrency (#6526)

* Tune TiKV: change the default value of `grpc-concurrency` (#6531)

* releases: add tidb 4.0.15 release notes (#6475)

* releases: add tidb 5.0.4 release notes (#6449)

* releases: add tidb 5.1.2 release notes (#6500)

* releases: add TiDB 5.1.2-10-06-33 release notes

* releases: add TiDB 5.1.2-10-06-33 release notes
* Update releases/release-5.1.2-10-06-33.md

* toc

* Apply suggestions from code review

Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

* add notes from comments

* add more tidb notes

* Update releases/release-5.1.2.md

Co-authored-by: Yuanjia Zhang <qw4990@163.com>

* Apply suggestions from code review

* Apply suggestions from code review

Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>
Co-authored-by: Enwei <jinenwei@pingcap.com>
Co-authored-by: xixirangrang <35301108+hfxsd@users.noreply.github.com>

* Update releases/release-5.1.2.md

Co-authored-by: shichun-0415 <89768198+shichun-0415@users.noreply.github.com>

* Update releases/release-5.1.2.md

Co-authored-by: Yuanjia Zhang <qw4990@163.com>

* Apply suggestions from code review

Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>
Co-authored-by: shichun-0415 <89768198+shichun-0415@users.noreply.github.com>

* replace pr numbers with issue numbers

* Update releases/release-5.1.2.md

Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>

* Apply suggestions from code review

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Co-authored-by: Enwei <jinenwei@pingcap.com>

* fix

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

* Apply suggestions from code review

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

Co-authored-by: Enwei <jinenwei@pingcap.com>

* Update releases/release-5.1.2.md

Co-authored-by: Grace Cai <qqzczy@126.com>

* Update releases/release-5.1.2.md

* Apply suggestions from code review

* Apply suggestions from code review

* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

Co-authored-by: Enwei <jinenwei@pingcap.com>

* Update releases/release-5.1.2.md

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* Update releases/release-5.1.2.md

* Update releases/release-5.1.2.md

* Apply suggestions from code review

* move notes

Co-authored-by: TomShawn <41534398+TomShawn@users.noreply.github.com>
Co-authored-by: Liuxiaozhen12 <82579298+Liuxiaozhen12@users.noreply.github.com>
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* remove a note about `raftstore.sync-log` (#6563)

* Add desc of "Storage Write Stall" row in the TiFlash grafana (#6524)

* system variables: update tidb_enable_noop_functions behavior (#6525)

* system variables: document last_insert_id (#6502)

* docs: update pd-configuration about upgrade (#6510)

* fix example for expression index (#6499)

* tidb: fix default value of performance.committer-concurrency (#6498)

* chore: remove circleci config (#6577)

* Document missing sysvars (#6485)

* system-variables: add skip-name-resolve (#6491)

* Document a few more system variables (#6492)

* add dr auto sync (#6592)

* tiflash, metric: add alert for TiFlash down (#6590)

Co-authored-by: Enwei <jinenwei@pingcap.com>
Co-authored-by: disksing <i@disksing.com>
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Co-authored-by: Daniël van Eeden <git@myname.nl>
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Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>
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Co-authored-by: Allen Zhong <zhongbenli@pingcap.com>
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