Update description on rule based index selection #6160
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choose-index.md
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| @@ -29,23 +29,83 @@ Before introducing index selection, it is important to understand the ways TiDB | |||
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| ## Index selection rules | |||
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| TiDB provides a heuristic rule named skyline-pruning based on the cost estimation of each operator for accessing tables. It can reduce the probability of wrong index selection caused by wrong estimation. | |||
| TiDB selects indexes based on rules or cost. the based rules include pre rules and Skyline-pruning. When selecting an index, TiDB tries the pre rule first. If an index satisfies a pre rule, TiDB directly selects the index. Otherwise, TiDB uses Skyline-pruning to exclude unqualified indexes, and then based on the cost estimation of each operator for accessing tables, selects the index with the lowest cost. | |||
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the based rules -> The based rules
Skyline-pruning -> skyline-pruning it seems that we don't capitalize the first letter before the PR
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I'm not sure whether unqualified corresponds to 不合适. Maybe we can also consider improper or unsuitable?
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unsuitable sounds better. fixed in 40a51d1.
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Co-authored-by: TomShawn <[email protected]>
TomShawn
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TomShawn
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Aug 20, 2021
Co-authored-by: TomShawn <[email protected]>
TomShawn
reviewed
Aug 20, 2021
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/remove-status LGT1 |
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This pull request has been accepted and is ready to merge. Commit hash: d5545ab
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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 <[email protected]> Co-authored-by: TomShawn <[email protected]> * 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 <[email protected]> * 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 <[email protected]> * Apply suggestions from code review * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Enwei <[email protected]> Co-authored-by: xixirangrang <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: shichun-0415 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: Yuanjia Zhang <[email protected]> * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: shichun-0415 <[email protected]> * replace pr numbers with issue numbers * Update releases/release-5.1.2.md Co-authored-by: Liuxiaozhen12 <[email protected]> * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Enwei <[email protected]> * 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 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: Grace Cai <[email protected]> * 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 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: shichun-0415 <[email protected]> * 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 <[email protected]> Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Grace Cai <[email protected]> Co-authored-by: Yuanjia Zhang <[email protected]> Co-authored-by: Enwei <[email protected]> Co-authored-by: xixirangrang <[email protected]> Co-authored-by: shichun-0415 <[email protected]> * 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 Co-authored-by: Enwei <[email protected]> Co-authored-by: disksing <[email protected]> Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Morgan Tocker <[email protected]> Co-authored-by: Daniël van Eeden <[email protected]> Co-authored-by: Grace Cai <[email protected]> Co-authored-by: Ti Chi Robot <[email protected]> Co-authored-by: Mattias Jonsson <[email protected]> Co-authored-by: ti-srebot <[email protected]> Co-authored-by: glorv <[email protected]> Co-authored-by: Suhaha <[email protected]> Co-authored-by: Ian <[email protected]> Co-authored-by: Yu Lei <[email protected]> Co-authored-by: Wenxuan <[email protected]> Co-authored-by: zhouqiang <[email protected]> Co-authored-by: xixirangrang <[email protected]> Co-authored-by: Yini Xu <[email protected]> Co-authored-by: WangZhengru <[email protected]> Co-authored-by: Xintao <[email protected]> Co-authored-by: Daniël van Eeden <[email protected]> Co-authored-by: Allen Zhong <[email protected]> Co-authored-by: ruoxi <[email protected]> Co-authored-by: Yasuo Honda <[email protected]> Co-authored-by: Yasuo Honda <[email protected]> Co-authored-by: Defined2014 <[email protected]> Co-authored-by: Ran <[email protected]> Co-authored-by: Chengpeng Yan <[email protected]> Co-authored-by: Yifan Xu <[email protected]> Co-authored-by: Weizhen Wang <[email protected]> Co-authored-by: Ziqian Qin <[email protected]> Co-authored-by: shichun-0415 <[email protected]> Co-authored-by: you06 <[email protected]> Co-authored-by: Fendy <[email protected]> Co-authored-by: Kolbe Kegel <[email protected]> Co-authored-by: jirongq <[email protected]> Co-authored-by: Caitin <[email protected]> Co-authored-by: Yuanjia Zhang <[email protected]> Co-authored-by: JaySon <[email protected]> Co-authored-by: unconsolable <[email protected]>
TomShawn
added a commit
that referenced
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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 <[email protected]> Co-authored-by: TomShawn <[email protected]> * 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 <[email protected]> * 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 <[email protected]> * Apply suggestions from code review * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Enwei <[email protected]> Co-authored-by: xixirangrang <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: shichun-0415 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: Yuanjia Zhang <[email protected]> * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: shichun-0415 <[email protected]> * replace pr numbers with issue numbers * Update releases/release-5.1.2.md Co-authored-by: Liuxiaozhen12 <[email protected]> * Apply suggestions from code review Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Enwei <[email protected]> * 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 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: Grace Cai <[email protected]> * 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 <[email protected]> * Update releases/release-5.1.2.md Co-authored-by: shichun-0415 <[email protected]> * 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 <[email protected]> Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Grace Cai <[email protected]> Co-authored-by: Yuanjia Zhang <[email protected]> Co-authored-by: Enwei <[email protected]> Co-authored-by: xixirangrang <[email protected]> Co-authored-by: shichun-0415 <[email protected]> * 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 <[email protected]> Co-authored-by: disksing <[email protected]> Co-authored-by: Liuxiaozhen12 <[email protected]> Co-authored-by: Morgan Tocker <[email protected]> Co-authored-by: Daniël van Eeden <[email protected]> Co-authored-by: Grace Cai <[email protected]> Co-authored-by: Ti Chi Robot <[email protected]> Co-authored-by: Mattias Jonsson <[email protected]> Co-authored-by: ti-srebot <[email protected]> Co-authored-by: glorv <[email protected]> Co-authored-by: Suhaha <[email protected]> Co-authored-by: Ian <[email protected]> Co-authored-by: Yu Lei <[email protected]> Co-authored-by: Wenxuan <[email protected]> Co-authored-by: zhouqiang <[email protected]> Co-authored-by: xixirangrang <[email protected]> Co-authored-by: Yini Xu <[email protected]> Co-authored-by: WangZhengru <[email protected]> Co-authored-by: Xintao <[email protected]> Co-authored-by: Daniël van Eeden <[email protected]> Co-authored-by: Allen Zhong <[email protected]> Co-authored-by: ruoxi <[email protected]> Co-authored-by: Yasuo Honda <[email protected]> Co-authored-by: Yasuo Honda <[email protected]> Co-authored-by: Defined2014 <[email protected]> Co-authored-by: Ran <[email protected]> Co-authored-by: Chengpeng Yan <[email protected]> Co-authored-by: Yifan Xu <[email protected]> Co-authored-by: Weizhen Wang <[email protected]> Co-authored-by: Ziqian Qin <[email protected]> Co-authored-by: shichun-0415 <[email protected]> Co-authored-by: you06 <[email protected]> Co-authored-by: Fendy <[email protected]> Co-authored-by: Kolbe Kegel <[email protected]> Co-authored-by: jirongq <[email protected]> Co-authored-by: Caitin <[email protected]> Co-authored-by: Yuanjia Zhang <[email protected]> Co-authored-by: JaySon <[email protected]> Co-authored-by: unconsolable <[email protected]>
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