Hangjie Mo

explaintest: Support concurrent execution

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### What problem does this PR solve? Issue Number: ref #45961 Problem Summary: ### What is changed and how it works? ### Check List Tests - [ ] Unit test...

List partition can't prune access partition with greater or less condition

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## Bug Report Please answer these questions before submitting your issue. Thanks! ### 1. Minimal reproduce step (Required) ```sql CREATE TABLE `t` ( `a` int NOT NULL, `b` varchar(255) DEFAULT...

system-variable: add a warning message for `tidb_partition_prune_mode` variable

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### What is changed, added or deleted? (Required) Deprecated static prune mode, ref https://github.com/pingcap/tidb/issues/56490 ### Which TiDB version(s) do your changes apply to? (Required) **Tips for choosing the affected version(s):**...

sql: Update sql-statement-flashback-cluster.md

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### What is changed, added or deleted? (Required) ### Which TiDB version(s) do your changes apply to? (Required) **Tips for choosing the affected version(s):** By default, **CHOOSE MASTER ONLY** so...

Incorrect plan and result are used when using generated columns

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## Bug Report Please answer these questions before submitting your issue. Thanks! ### 1. Minimal reproduce step (Required) ``` CREATE TABLE t0(id int default 1, c0 NUMERIC UNSIGNED ZEROFILL ,...

planner: fix prune `null` value in `in` function for range partition

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### What problem does this PR solve? Issue Number: close #61726 Problem Summary: ### What changed and how does it work? ### Check List Tests - [ ] Unit test...

telemetry: add telemetry related code back

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This reverts commit 3d1708f80cc5f792fac3ac014786b84b578dfc8b. ### What problem does this PR solve? Issue Number: close https://github.com/pingcap/tidb/issues/61766 Problem Summary: Add telemetry related code back, it will print log to files. The code...

## Enhancement In version 7.5, we removed the telemetry-related code by https://github.com/pingcap/tidb/pull/51202. It's due to concerns that network transmission of usage data might cause confusion or misunderstanding for users. This...

tidb_query_datatype: fix tikv process utf-16 surrogate pair

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### What is changed and how it works? Issue Number: Close #18455 What's Changed: ```commit-message TiKV can't process UTF-16 surrogate pair before, this PR fix this problem. ``` ### Related...

Tikv cannot handle surrogate pairs

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## Bug Report ### What version of TiKV are you using? 8e3607e281704964bbf914b336a3ee97f8c42aae ### What operating system and CPU are you using? non related. ### Steps to reproduce As https://github.com/pingcap/tidb/pull/61109, add...