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FAQ: add 4 questions and update description #832
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FAQ.md
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update HIGH_PRIORITY | LOW_PRIORITY table_reference set assignment_list where where_condition; | ||
replace HIGH_PRIORITY | LOW_PRIORITY into table_name; | ||
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2)全表扫会自动调整为低优先级,analyze 也是默认低优先级。 |
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Please leave a blank line between the code block and the "2)……".
FAQ.md
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Select 在不同的隔离级别上,会有不同的执行逻辑和表现形式: | ||
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- 首先,select 在 RC 隔离级别下,不会到 PD 拿时间戳,直接用最大的 timestamp 去读数据,读取到当前最新的已经提交成功的数据。但在 RC 模式下,也会出现 RC 事务隔离级别本身的问题,即会出现幻读和不可重复读的情况。 | ||
- RR 隔离级别还是要到 PD 去拿 timestamp ,通过 timestamp 以及 precolator 算法来读取多版本数据,防止读到被其他事务/会话修改过的数据,从而避免了幻读和不可重复读的问题。 |
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- Delete the extra whitespace between "timestamp" and the following comma.
- Typo: precolator -> Percolator
FAQ.md
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#### 3.3.12 Select 语句在 TiDB 的 RC 与 RR 隔离级别下的实现过程,以及对应用的影响。 | ||
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TiDB 实现了两种隔离级别:读已提交和可重复读。 |
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Add English expressions to make them more friendly to readers:
读已提交和可重复读 -> 读已提交 (Read Committed, RC) 和可重复读 (Repeatable Read, RR)
FAQ.md
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Select 在不同的隔离级别上,会有不同的执行逻辑和表现形式: | ||
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- 首先,select 在 RC 隔离级别下,不会到 PD 拿时间戳,直接用最大的 timestamp 去读数据,读取到当前最新的已经提交成功的数据。但在 RC 模式下,也会出现 RC 事务隔离级别本身的问题,即会出现幻读和不可重复读的情况。 |
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直接 -> 而是直接
FAQ.md
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触发策略:新表达到 1000 条,会自动触发。 | ||
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当表的 (修改数/当前总行数) 大于 `tidb_auto_analyze_ratio` 的时候,会自动触发 analyze 语句。`tidb_auto_analyze_ratio` 的默认值为 0,即关闭此功能。为了保险起见,在开启此功能的时候,保证了其最小值为 0.3。但是不能大于等于 `pseudo-estimate-ratio` (默认值为 0.7),否则会有一段时间使用 pseudo 统计信息,建议设置值为 0.5。 |
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For the parentheses in this line, modify them to Chinese parentheses, and don't leave extra whitespaces before or after them.
FAQ.md
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- HIGH_PRIORITY:该语句为高优先级语句,TiDB 在执行阶段会优先处理这条语句 | ||
- LOW_PRIORITY:该语句为低优先级语句,TiDB 在执行阶段会降低这条语句的优先级 | ||
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以上两种参数可以结合 TiDB 的 DML 语言进行使用,具体使用方式可以参考[官方文档](https://pingcap.com/docs-cn/sql/dml/),使用方法举例如下: |
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Use relative path for the link: [官方文档](sql/dml.md)
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当表的 (修改数/当前总行数) 大于 `tidb_auto_analyze_ratio` 的时候,会自动触发 analyze 语句。`tidb_auto_analyze_ratio` 的默认值为 0,即关闭此功能。为了保险起见,在开启此功能的时候,保证了其最小值为 0.3。但是不能大于等于 `pseudo-estimate-ratio` (默认值为 0.7),否则会有一段时间使用 pseudo 统计信息,建议设置值为 0.5。 | ||
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#### 3.3.12 Select 语句在 TiDB 的 RC 与 RR 隔离级别下的实现过程,以及对应用的影响。 |
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Make it sounds like a question:
影响。 -> 影响是怎样的?
FAQ.md
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@@ -508,6 +508,47 @@ information_schema 库中的 tables 表里的 create_time 即为表的真实创 | |||
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TiDB 在执行 SQL 时,预估出来每个 operator 处理了超过 10000 条数据就认为这条 query 是 expensive query。可以通过修改 tidb-server 配置参数来对这个门限值进行调整,调整后需要重新启动 tidb-server。 | |||
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#### 3.3.10 在 TiDB 中如何控制或改变 SQL 提交的执行优先级? | |||
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首先需要了解高优先级和低优先级的语法元素 |
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It would be better to add a colon ":" after "元素".
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#### 3.3.12 Select 语句在 TiDB 的 RC 与 RR 隔离级别下的实现过程,以及对应用的影响是怎样的? | ||
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TiDB 实现了两种隔离级别:读已提交(Read Committed, RC)和可重复读(Repeatable Read, RR)。 |
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If the content inside the parentheses is all in English, use the English parentheses and leave a whitespace outside the parentheses.
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LGTM
FAQ.md
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当表的(修改数/当前总行数)大于 `tidb_auto_analyze_ratio` 的时候,会自动触发 analyze 语句。`tidb_auto_analyze_ratio` 的默认值为 0,即关闭此功能。为了保险起见,在开启此功能的时候,保证了其最小值为 0.3。但是不能大于等于 `pseudo-estimate-ratio`(默认值为 0.7),否则会有一段时间使用 pseudo 统计信息,建议设置值为 0.5。 | ||
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#### 3.3.12 `SELECT` 语句在 TiDB 的 RC 与 RR 隔离级别下的实现过程,以及对应用的影响是怎样的? |
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RC 在 2.0 中已经禁用了
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那这个问题暂时先不放官网 FAQ 了
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#### 3.3.11 在 TiDB 中 auto analyze 的触发策略是怎样的? | ||
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触发策略:新表达到 1000 条,会自动触发。 |
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我记得还有要求多久之内没有写入,可以找海滨确认一下
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需要在 20*stats-lease 的时间内没有写入,也就是默认 1min.
* FAQ: add 3 questions and update description Via: pingcap/docs-cn#832 * FAQ: address the comment
* fix: remove hardcode 'v.1.0.0~' for pdf version (#436) * scripts: fix typo (#435) * op-guide: update ansible and offline deployment (#431) * op-guide: update ansible and offline deployment Via: pingcap/docs-cn#682 * Address the comment * op-guide: address the comment * docs/op-guide: create GC document (#433) * docs/op-guide: create GC document * Update gc.md * Update gc.md * Update GC via: pingcap/docs-cn#689 * Update gc.md * Update gc.md * Update gc.md * Update gc.md * tools: add TiDB Controller guide (#432) * tools: add TiDB Controller guide Via: pingcap/docs-cn#683 * Address comments * tools: address controller comments * Fix broken link in binary-deployment.md (#437) Caused by a capitalization mismatch * op-guide: update format (#438) * quickstart: update one step description (#440) * op-guide: fix the file name and join (#441) * op-guide: fix the file name Via: pingcap/docs-cn#677 * op-guide: fix join Via: pingcap/docs-cn#680 * sql: add auto-analyze-ratio (#442) * Update wording (#446) * Update wording * Add "the" before "TiDB services" * benchmark: add sysbench 2.0 vs. 1.0 (#444) * benchmark: add sysbench 2.0 vs. 1.0 via: pingcap/docs-cn#699 * Update sysbench-v2.md * Update sysbench-v2.md * Update sysbench-v2.md * releases: fix typo and update format in 1.1 Alpha (#447) * benchmark: fix format (#448) * benchmark: add TPC-H benchmark result (#443) * benchmark: create tpch document via pingcap/docs-cn#698 * benchmark: update test result via pingcap/docs-cn@0878112 * Update tpch.md * Add files via upload * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * Update tpch.md * tools: add TiKV Control User Guide (#439) * tools: add TiKV Control User Guide * tools: update wording * tools: address comments * tools: address comments * releases/readme: add the release notes for TiDB 2.0 (#449) * releases/readme: add the release notes for 2.0 * releases: address comments * Change the statement of one feature (#450) * Change the statement of one feature * Remove the TPC-H image * Update the TPCH image * releases: update wording * Update ROADMAP.md (#453) * sql: update ddl table_option (#445) Via: pingcap/docs-cn#686 * Update the TiDB production (#454) Update the TiDB introduction * sql: fix the SQL for SHARD_ROW_ID_BITS (#451) Via: pingcap/docs-cn#707 * op-guide, readme: add TiDB 2.0 Upgrade Guide (#455) * op-guide: add fontconfig note (#456) Via: pingcap/docs-cn#714 * op-guide: fix code block format at website (#457) * roadmap: fix the list level (#458) * Updated tpch.md (#452) Cleaned up certain parts of the bottom section to provide more clarity. * Update document structure (#459) * sql: update tidb_batch_insert/delete autocommit (#462) * sql: update tidb_batch_insert autocommit Via: pingcap/docs-cn#721 * sql: update tidb_batch_insert autocommit * tispark: update the link and expression (#464) * op-guide: add pip version requirement (#460) Via: pingcap/docs-cn#719 * Fix the wrong statement (#465) * Fix the wrong statement * Fix a typo * sql: add two TiDB error codes (#466) * sql: add two TiDB error codes Via: pingcap/docs-cn#728 * sql: update error code description * faq: update description and delete repeated question (#467) * releases: add the release notes for TiDB 2.0.1 (#469) * releases: add the release notes for TiDB 2.0.1 * releases: update release list * releases: update wording * releases: address the comment * adopters: add WEIRUIDA (#470) Via: pingcap/docs-cn#731 * adopters: add China Telecom BestPay (#471) Via: pingcap/docs-cn#734 * update the go version (#463) * releases: rename to fix the display issue (#473) * releases: add the release notes for TiDB 2.0.2 (#474) * releases: add the release notes for TiDB 2.0.2 * releases: update readme and address the comment * sql: fix the scope of some tidb variables (#476) Via: pingcap/docs-cn#738 * adopters: add Keruyun (#479) Via: pingcap/docs-cn#744 * sql: fix privilege errors (#478) * sql: fix privilege errors Via: pingcap/docs-cn#745 * sql: fix tables_priv * Update the confusing statements (#468) * Fix the wrong statement * Fix a typo * Fix the statement * Fix the quotation mark * Update the statement of tikv-ctl * Update the MySQL related statement * Update the statement regarding the MySQL client * *: add TiKV overview, installation, and client driver (#472) * *: add TiKV Quick Start Guide * tikv: update code display effect * tikv: update the ParseInt code * tikv: fix a step typo * tikv: update wording * tikv, readme: reorganize TiKV documents * tikv, readme: reorganize the structure and update content based on comments * tikv, readme: add Install TiKV Using Docker Compose * tikv: add two links to API usage * tikv, readme: update file name and readme * tikv: update wording * tikv: update two links * releases, readme: add the release notes for 2.0.3 (#481) * tikv: add a go client link to docker compose deployment (#485) * tikv: add a go client link to docker compose deployment * tikv: update wording * tikv: delete extra words * tikv, readme: add "Install and Deploy TiKV Using Ansible" (#482) * tikv, readme: add "Install and Deploy TiKV Using Ansible" * tikv: address some of the comments * tikv: add description about cluster topology * tikv: add two links * tikv: update wording * tikv: address comments * readme: add the link to the tutorial (#489) * Fix the wrong statement * Fix a typo * Fix the statement * Fix the quotation mark * Update the statement of tikv-ctl * Update the MySQL related statement * Update the statement regarding the MySQL client * Add the link to the tutorial * sql: fix typo about COLUMN_PRIVILEGES (#490) * op-guide, tikv: update ansible deployment for TiDB and TiKV (#491) * sql: update the description of auto id conflicts (#488) * sql: update the description of auto id conflicts Via: pingcap/docs-cn#758 * sql: add whitespace to closed intervals * sql: update wording to address comments * tikv, readme: add "Install and Deploy TiKV Using Docker" (#486) * tikv, readme: add "Install and Deploy TiKV Using Docker" * tikv: update Docker description * op-guide: update ansible deployment steps and wording (#483) * op-guide: update ansible deployment steps and wording * op-guide: add description under a headline * adopters: add Seasun Games (#493) Via: pingcap/docs-cn#761 * adopters: add Zhuan Zhuan (#495) * op-guide, sql: add description about TSO support (#492) * tools: add checking Region properties to TiKV Control (#494) * faq: add ERROR 1148 (42000) (#480) * faq: add ERROR 1148 (42000) Via: pingcap/docs-cn#732 * faq: fix a typo * ROADMAP: Update roadmap (#499) * ROADMAP: Update roadmap The roadmap is out of date. So we need to update it. * Address comment * Address comment * op-guide: add note for lower-case-table-names (#497) Via: pingcap/docs-cn#742 * tikv: update the usage example for Txn KV API (#487) * tikv: update the usage example for Txn KV API * tikv: update the code fencing * tikv: address comments * FAQ: add processing time of DDL (#502) * FAQ: add processing time of DDL Via: pingcap/docs-cn#752 * FAQ: address comments * FAQ: udpate wording * roadmap: fix the list format (#503) * sql: add tidb_retry_limit (#501) * sql: add tidb_retry_limit * sql: address the comment * op-guide, tikv: update docker compose deployment (#496) * op-guide, tikv: update docker compose deployment Via: pingcap/tidb-docker-compose#25 * op-guide: add the TiSpark section * op-guide: add a 5-minute tutorial link * op-guide: update wording * remove leading Besides (#505) In general introductory adverbs create more complex structure. With "Besides," it is confusing as to whether the following sentence is supposed to be supporting or contrasting. * releases, readme: add the release notes for 2.0.4 (#506) * releases, readme: add the release notes for 2.0.4 * Update 2.0.4 * op-guide, media: update overview dashboard (#500) * op-guide, media: update overview dashboard Via: pingcap/docs-cn#760 * Revert "op-guide, media: update overview dashboard" This reverts commit cbee1b7. * op-guide, media: update overview dashboard Via: pingcap/docs-cn#760 * media: add overview image * op-guide: address the comment * op-guide: refine Ansible deployment of TiDB (#508) * op-guide: refine Ansible deployment of TiDB Via: pingcap/docs-cn#766 * op-guide: update wording * op-guide: update wording * op-guide: update wording to address comments * op-guide: fix typo * op-guide: address comments * tikv: Fix typo (#512) * op-guide: ansible deployment add dev_mode variable note (#510) * *: reorganize TiDB deployment related docs (#511) * *: reorganize TiDB deployment related docs Via: pingcap/docs-cn#766, pingcap/docs-cn#770, pingcap/docs-cn#772 * op-guide: address comments * op-guide: address comments * op-guide: update links, format, and port variable (#513) Via: pingcap/docs-cn#766, pingcap/docs-cn#782 * op-guide: update deployment links and fix typo (#514) * faq: add FAQ questions (#509) * faq: add FAQ questions * Fix typo and format * Update wording * Update wording and delete an extra period * releases, readme: add the release notes for 2.1 beta (#516) * releases, readme: add the release notes for 2.1 beta * Fix the format * tikv: update ansible deployment links (#518) * tikv: remove the TiKV binary deployment doc (#519) * tools: replace generate binlog position with binlogctl (#517) * tools: replace generate binlog position with binlogctl * Update tidb-binlog-kafka.md * releases, readme: add the release notes for 2.0.5 (#522) * tools: update wording (#523) * update TiKV roadmap (#525) * sql: disable transaction auto retry (#521) * sql: disable transaction auto retry Via: pingcap/docs-cn#784 * sql: address the comment * adopters: add, update and remove certain adopters (#526) Via: pingcap/docs-cn#786, pingcap/docs-cn#801 * Update Adopters' Industry Category (#524) Updated certain adopters' industry category with more standard and well-understood names. * FAQ: add 4 new questions and answers (#527) Via: pingcap/docs-cn#783 * Update go-client-api.md (#528) Tiny typo. * adopter, faq: update the adopter list (#529) * Fix the wrong statement * Fix a typo * Fix the statement * Fix the quotation mark * Update the statement of tikv-ctl * Update the MySQL related statement * Update the statement regarding the MySQL client * Add the link to the tutorial * adopter: update the latest adopter list * fix a type in faq * Address comments * op-guide: add configuring CPUfreq governor mode (#531) * op-guide: add configuring CPUfreq governor mode * Fix the code block format * Update ansible-deployment.md * Update wording * adopters: update table format (#533) * adopters: update table format * adopters: fix table format * adopters: update table alignment (#536) * op-guide: add configuring CPUfreq governor mode (#534) * tools, FAQ, op-guide: update compact, drainer, questions and upgrade info (#537) * tools: add drainer output via: pingcap/docs-cn#795 * tools: update compact command via: pingcap/docs-cn#771 * FAQ: update questions Transpose one question according to the Chinese version. via: pingcap/docs-cn#792 * op-guide: add upgrade info via: pingcap/docs-cn#799 * tools: address comment via: #530 * tools, op-guide: address comment via: #537 * remove plan cache in config file (#538) * correct gc duration error message (#539) * op-guide: add description for txn-local-latches (#535) * tools: add drainer output via: pingcap/docs-cn#795 * op-guide: add description for txn-local-latches via: pingcap/docs-cn#776 * op-guide: address comment Via: #535 * tools, op-guide: update configuration and PD Control (#532) * tools, op-guide: update configuration and PD Control Via: pingcap/docs-cn#781, pingcap/docs-cn#794, pingcap/docs-cn#796, pingcap/docs-cn#802, pingcap/docs-cn#803 * tools: address the comment * tools: address comments * tools: add jq usages for pd-ctl (#542) * tools: add jq usages for pd-ctl Via: pingcap/docs-cn#790 * tools: address the comment Via: https://github.com/pingcap/docs-cn/pull/790/files * op-guide: use tidb user with sudo privilege to run deploy_ntp.yml (#544) * tools: add dynamically modifying RocksDB configuration (#541) * tools: add dynamically modifying RocksDB configuration * Update wording * tools: update the code block in PD Control (#545) Via: pingcap/docs-cn#809 * op-guide: add accessing Spark with Python or R (#546) Via: pingcap/tidb-docker-compose#27 * op-guide: add notes about @@ (#547) * op-guide: add notes about @@ * Update wording * Update wording * Update wording * *: add summary metadata to all docs files for SEO (#550) * op-guide, tool: add summary metadata (#548) * op-guide: add summary metadata * op-guide: add summary metadata#2 * tool: add summary metadata * op-guide: address comment * *: add summary metadata to 63 docs files (#549) * *: add summary metadata to 63 docs files * tikv: update summary wording * faq: fix typo and update wording (#552) * tools: add cluster version in pd-control (#551) * tools: add cluster version Via: pingcap/docs-cn#812 * tools: address the comment * op-guide: fix generated-docker-compose description (#555) Via: pingcap/docs-cn#820 * tispark: update title level and description (#554) * tools: update the leader transfer example (#553) Via: pingcap/docs-cn#819 * op-guide: fix display of a code block in note (#556) * op-guide: fix code block display (#557) * op-guide: fix grammar mistakes in gc (#558) * tools, readme: add pd recover usage document (#560) * tools, readme: add pd recover usage document Via: pingcap/docs-cn#818 * tools: address comment * tikv, op-guide: refine TiKV Ansible deployment steps and update IPs (#559) * tikv, op-guide: refine TiKV Ansible deployment steps and update IPs Via: #508, #531, ... * op-guide, tikv: address comments * op-guide: add advertise-address to TiDB configuration (#543) * add advertise-address to configuration.md * refine comment * refine comment * refine code * releases, readme: add TiDB 2.0.6 release notes (#562) * op-guide, sql, tool: fix comma misuse (#565) To change the Chinese commas into the English commas in three English documents * op-guide, tikv: update ansible `useradd` command (#564) Via: pingcap/docs-cn#834 * op-guide: update cross-region deployment description (#563) Via: pingcap/docs-cn#824 * op-guide: update PD scaling steps (#567) Via: pingcap/docs-cn#836 * scripts/check_requirement: match one or more digits (#569) * op-guide: fix some indicators (#568) Via: pingcap/docs-cn#810 * tools/pd-control: add option of disable-namespace-relocation (#573) * tools: add more sub commands for tikv-ctl (#572) Signed-off-by: qupeng <qupeng@pingcap.com> * tools: fix typo and add a blank line (#576) * job_id must not be quoted (#575) The correct syntax requires no quotes. * FAQ: add 3 questions (#571) * FAQ: add 3 questions and update description Via: pingcap/docs-cn#832 * FAQ: address the comment * overview, media: add TiSpark and update architecture image (#579) * overview, media: add TiSpark and update architecture image Via: pingcap/docs-cn#838, pingcap/docs-cn#850 * overview: address the comment * roadmap: TiDB operator has been released (#574) * TiDB operator has been released Since TiDB operator has been released, does it make sense to check off this box? * roadmap: fix typo * op-guide: remove inventory.ini variable (#580) * tools: add two commands in tikv-ctl (#581) * tools: add two commands in tikv-ctl * tools: address the comment * tools: address comments * tools: update wording * sql: update explain format for TiDB 2.1 (#578) * op-guide: add missing arguments (#582) * sql: update the step of the "Auto Increment ID" (#577) Via: pingcap/docs-cn#842 * releases, readme: Add release notes for 2.1 RC1 (#586) * releases, readme: add the release notes for 2.1 RC1 * Revert "releases, readme: add the release notes for 2.1 RC1" This reverts commit 5d7d5b8. * releases, readme: add the release notes for 2.1 RC 1 * sql: add 8003 error code description (#588) Via: pingcap/docs-cn#839 * *: add slow-query doc (#587) * sql: add default differences between TiDB and MySQL (#591) * sql: add default differences between TiDB and MySQL Via: #590 * sql: address the comment * op-guide: update tikv rolling udpate policy (#592) * sql: add new tidb specific system variables (#589) * sql: add new tidb specific system variables Via: pingcap/docs-cn#852 * sql: address the comment * QUICKSTART, op-guide: reorganize the content (#583) * QUICKSTART, op-guide: reorganize and add the content * op-guide, QUICKSTART: address the comment * *: address the comment * *: address the comment * op-guide: update the monitoring section * readme, quickstart: reorganize the quick start structure (#594) * readme, quickstart: reorganize the quick start structure * QUICKSTART: add a link to try tidb * trytidb: add more information * Address comments * Address comments * quickstart: add a blank line * refine two inaccurate description (#595) * refine two inaccurate description * address comment * op-guide: Add Kubernetes Deployment (#593) * Add GKE Deployment * Added GKE Tutorial * Renamed to Kubernetes * Update README.md * Update README.md * Changed to Kubernetes generic * Update kubernetes.md * op-guide: update wording (#600) * *: Reorganize quick start to promote other platforms (#598) * Change to links to major deployment platforms * Update QUICKSTART.md * Update QUICKSTART.md * Update QUICKSTART.md * Update QUICKSTART.md * Remove tutorial from navigation It is in Quickstart now. * Improved link to edit directly * Update QUICKSTART.md * Minor correction Minor editorial correction to framing components of TiDB platform * Changed third party to unofficial i.e. not part of official documentation project, but may include PingCAP employees. * Addressing Feedback * Update QUICKSTART.md * op-guide: fix a code typo in Ansible scaling (#602) * readme, releases: add 2.0.7 release notes (#603) * releases, readme: add the release notes for 2.1 RC1 * Revert "releases, readme: add the release notes for 2.1 RC1" This reverts commit 5d7d5b8. * readme, releases: add 2.0.7 release notes * sql: Default tidb_ddl_reorg_priority is slow (#610) * Default tidb_ddl_reorg_priority is slow * Fix incorrect indent level * *: split overview.md into sub documents (#611) Reorganized Introduction * sql: YEAR(2) is not supported, M is display width (#608) * YEAR(2) is not supported, M is display width * Fixed punctuation point (existing issue) * sql: Remove unsupported functions (#607) * Document support for IGNORE n LINES (#601) * sql: Clarify default character-set is utf8 (#609) * Clarified default characterset. * latin1 keyword as code * sql: remove documentation about read committed (#614) * op-guide: update tidb-ansible and version note (#615) Via: pingcap/docs-cn#872 * *: Include bikeshare example database in manual (#596) Include bikeshare example database. * sql: Add example to QEP manual page (#599) Add example EXPLAIN usage with bikeshare sample database * op-guide: update timezone variable (#618) Via: pingcap/docs-cn#877 * sql, readme: update timezone support (#617) Via: pingcap/docs-cn#876 * Added link to compatibility man page (#613) * error: change the to (#616) * sql: Added incompatibilities with MySQL (#604) * Added incompatibilities with MySQL events, sys do not exist pfs exists but returns empty. * Changed monitoring to performance metrics * Improve unsupported features * Make all items plural * Improved Clarity Remove 'the' from Foreign keys / fulltext / spatial indexes Clarify that it is not non-utf8 characters, but character sets other than utf8. * utf8 as code * Added Storage engines to compatibility * Update mysql-compatibility.md * Added link to --store * Add large transactions and EXPLAIN command * Added Optimizer Trace To differentiate: TiDB has query-tracing, mysql has optimizer tracing. * lowercase t * Include PR605 Add default differences * lower m * Fixed spacing * Addressed PR Feedback * Addressed PR feedback * Fix broken manual page (#620) Inline code inside blockquote * Improved consistency of variable descriptions (#612) * tools: add more commands in pd-control (#619) * releases, readme: add 2.1 RC2 release notes (#621) * sql: add parentheses for TIDB_VERSION (#622) * overview: update a link (#623) Via: pingcap/docs-cn#890 * sql: fix wording (#624) * Added hostname support (#631) Recently added pingcap/tidb#7750 * Document character sets / collations (#628) This was recently improved in pingcap/tidb#7647 * sql: Add recent JSON functionality (#632) * Add recent JSON functionality * Update json-functions-generated-column.md * pd-ctl: add topsize command and change the default value of limit to 16 (#627) * update the go version * add topsize command; change the default value of the limit to 16 * Update tune-tikv.md (#634) https://github.com/tikv/tikv/blob/master/src/raftstore/store/config.rs#L60 * benchmark, media: add tpc-h benchmark (#636) Via: pingcap/docs-cn#896 * op-guide, tikv: update tidb and tikv docker compose steps (#635) * op-guide: move buildFrom to buildPath for docker compose guide Via: pingcap/docs-cn#893, pingcap/tidb-docker-compose#3 * op-guide: modify yaml to yml * op-guide: address comments * op-guide: update wording to address the comment * tikv: improve code * op-guide: update `vim` in TiDB docker compose * faq: some adjustments to Syncer related content (#638) * releases, readme: add 2.1 RC3 release notes (#639) * releases, readme: add 2.1 RC3 release notes * releases: update format * tikv: update docker compose steps (#641) Via: tikv/tikv#3643 * op-guide: update TiDB download links (#640) * op-guide: update TiDB download links Via: pingcap/docs-cn#899 * op-guide: address comments * op-guide: fix monitor typos (#652) * roadmap: update TiKV roadmap (#651) Via: tikv/tikv#3641 * pd-ctl: update the output of command health. (#642) * update the go version * add topsize command; change the default value of the limit to 16 * update the output of command health * benchmark, media: add v2.1 vs v2.0 sysbench results (#643) * benchmark, media: add v2.1 vs v2.0 sysbench results Via: pingcap/docs-cn#897 * benchmark: address the comment * benchmark: address comments * roadmap: update TiDB roadmap (#654) * roadmap: update TiDB roadmap Via: pingcap/docs-cn#912 * roadmap: address the comment * op-guide: fix a typo in ansible deployment (#655) * sql: fix a typo and update wording (#653) Via: pingcap/docs-cn#917 * fix some tikv-ctl parameters (#637) * readme: link TiKV docs to the tikv repo (#659) * readme: improved best practices link (#650) Set to canonical location. * tools: update operator Region split (#658) Via: pingcap/docs-cn#866 * Remove deprecation note (#648) Unrelated to TIDB * op-guide, tools: Recommend mydumper from enterprise tools (#644) Recommend our mydumper over upstream mydumper. Updated backup-restore, FAQ and added a tools page describing the differences. * architecture, features: Improve Overview (#649) * Update architecture.md * Remove TiDB Features * Delete features.md * Updated links * Removed Roadmap and connect with us Both are already top-level menu items * Update tikv faq (#664) * Trim whitespace * Update tikv faq * FAQ: Restore deleted content (#665) * sql: update slow query document (#663) * sql: update slow query document * address comment * address comment * address comment * faq, sql: Document tidb_force_priority (#645) Add FAQ, server option docs. * Added xprotocol to unsupported (#661) * sql: Rename TiDB proprietary variables to TiDB specific (#666) * Update tidb-specific.md * Update README.md * Improved introduction * Update tidb-specific.md * sql, readme: add SQL optimization process (#660) * Add XML functions to incompatible (#668) * op-guide: fix variable description (#670) Via: pingcap/docs-cn#928 * *: update ETL description (#671) * overview, readme: update ETL wording (#677) * releases, readme: add 2.0.8 release notes (#676) * releases, readme: add 2.0.8 release notes * Update format * Revert "overview, readme: update ETL wording" (#678) * Revert "releases, readme: add 2.0.8 release notes (#676)" This reverts commit e466fd3. * Revert "overview, readme: update ETL wording (#677)" This reverts commit 6a754d9. * readme, sql: Improve JSON Documentation (#656) * Reduced duplication with generated columns vs json functions pages. * Added section for unsupported functions. * Improved example * *: update links for SEO
@shenli @lilin90 @lamxTyler PTAL