fix CurrentTimestamp check error for different timezones

In pessimistic txn, statement retry should use 'for update ts' to read
but point get use the snapshot with start ts

new framework

Create test.md

Support window sort on stream agg

* first commit
1. plugin add Engine
2. show engine && show table status is work right with plugin
3. csv reader example

* code support OnReaderNext and OnReaderOpen

* plugin support selection

pass unit tests

ddl: support invisible index

store: BatchGet read from local follower if keys excceds threshold

* proto-buffer of ingest rpc desc supplement

* add proto defined code

Signed-off-by: Neil Shen <overvenus@gmail.com>

fix cte as bug

LGTM

fix some bug

Co-authored-by: ailinkid <314806019@qq.com>

Fix missing required attribute for ec2-api

Merge from master

refine stmt v1 retriever

feat: let column default support more expressions

# This is the 1st commit message:

fixup

# This is the commit message #2:

fixup

# This is the commit message pingcap#3:

fixup

# This is the commit message pingcap#4:

fixup

# This is the commit message pingcap#5:

fixup

# This is the commit message pingcap#6:

fixup

…nd remove tidb_kv_read_timeout hint (pingcap#46941) (pingcap#5)

Co-authored-by: crazycs <crazycs520@gmail.com>

*: support for adding fulltext index

* skip TestIndexJoin31494
* fix
* global sort: add boundaries to split keys when generating plan (pingcap#58323) (pingcap#58356)
* statistics: get right max table id when to init stats (pingcap#58280) (pingcap#58298)
* executor: Fix the parse problematic slow log panic issue due to empty …
* statstics: trigger evict by the timer (pingcap#58027) (pingcap#58268)
* br: make table existence check unified on different br client (pingcap#58211) (pingcap#58262)
* log backup: use global checkpoint ts as source of truth (pingcap#58135) (pingcap#58265)
* executor: skip execution when build query for VIEW in I_S (pingcap#58203) (pingcap#58236)
* statistics: copy stats when to update it for avoiding data race (pingcap#5810…
* domain,infoschema: make infoschema activity block GC safepoint advanci…
* planner: handle panic when loading bindings at startup (pingcap#58017) (pingcap#58035)
* statistics: right deal with error for reading stats from storage  (pingcap#58…
* statistics: lite init used wrong value to build table stats ver (pingcap#5802…
* lightning, ddl: set TS to engineMeta after ResetEngineSkipAllocTS  (pingcap#5…
* *: avoid unlock of unlocked mutex panic on TableDeltaMap (pingcap#57799) (pingcap#57997)
* ddl: handle context done after sending DDL jobs (pingcap#57945) (pingcap#57989)
* *: activate txn for query on infoschema tables (pingcap#57937) (pingcap#57951)
* lightning: add PK to internal tables (pingcap#57480) (pingcap#57932)
* statistics: correct behavior of non-lite InitStats and stats sync load…
* statistics: avoid stats meta full load after table analysis (pingcap#57756) (pingcap#57911)
* dumpling: use I_S to get table list for TiDB and add database to WHERE…
* br: fix insert gc failed due to slow schema reload (pingcap#57742) (pingcap#57907)
* statistics: do not record historical stats meta if the table is locked…
* metrics: remove the filled colors (pingcap#57838) (pingcap#57866)
* planner: use TableInfo.DBID to locate schema (pingcap#57785) (pingcap#57870)
* *: support cancel query like 'select * from information_schema.tables'…
* session: make `TxnInfo()` return even if process info is empty (pingcap#57044) (pingcap#57161)
* ddl: Fixed partitioning a non-partitioned table with placement rules (…
* *: Reorg partition fix delete ranges and handling non-clustered tables…
* executor: fix query infoschema.tables table_schema/table_name with fil…
* ddl: check context done in isReorgRunnable function (pingcap#57813) (pingcap#57820)
* ddl: fix ExistsTableRow and add tests for skip reorg checks (pingcap#57778) (pingcap#57801)
* *: Fix for TRUNCATE PARTITION and Global Index (pingcap#57724)
* br: prompt k8s.io/api version (pingcap#57791) (pingcap#57802)
* statistics: fix some problem related to stats async load (pingcap#57723) (pingcap#57775)
* expression: fix wrong calculation order of `radians` (pingcap#57672) (pingcap#57688)
* statistics: rightly deal with timout when to send sync load  (pingcap#57712) (pingcap#57751)
* ddl: `tidb_scatter_region` variable supports setting value in both upp…
* planner: fix that vector index output empty result when pk is non-int …
* ddl: dynamically adjusting the max write speed of reorganization job (…
* executor: fix hang in hash agg when exceeding memory limit leads to pa…
* statistics: use infoschema api to get table info (pingcap#57574) (pingcap#57614)
* planner: Use realtimeRowCount when all topN collected (pingcap#56848) (pingcap#57689)
* statistics: handle deleted tables correctly in the PQ (pingcap#57649) (pingcap#57674)
* backup: reset timeout on store level (pingcap#55526) (pingcap#57667)
* planner/core: fix a wrong privilege check for CTE & UPDATE statement (…

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Issue Number: close #xxx

Problem Summary: compile PingkaiDB at gitea

### What changed and how does it work?

### Check List

Tests <!-- At least one of them must be included. -->

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- [ ] Performance regression: Consumes more CPU
- [ ] Performance regression: Consumes more Memory
- [ ] Breaking backward compatibility

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- [ ] Affects user behaviors
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- [ ] Changes MySQL compatibility

### Release note

<!-- compatibility change, improvement, bugfix, and new feature need a release note -->

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Reviewed-on: https://git.pingcap.net/pingkai/tidb/pulls/5
Reviewed-by: tianyuan <tianyuan@pingcap.cn>
Reviewed-by: fan.zhou <fan.zhou@pingcap.cn>

executor: implement MVDeltaMergeAgg operator