Openmldb

Breaking Changes
- Upgrade SQLAlchemy to 2.0.27 and SQLAlchemy 1.x is not supported(3805 yht520100)
- Correct semantic for `first_value` which will be compatible with ANSI SQL(3861 aceforeverd)
- Set execute_mode default to `online` which was `offline` before 0.9.0(3862 aceforeverd)
- The client-side authentication is deprecated and we can enable authentication in server-side(3835 3885 oh2024)

Features
- Support offline building docker image(3773 3787 QiChenX, 3778 aceforeverd)
- Support MySQL protocol with new module OpenM(ysq)LDB(3800 tobegit3hub 3816 3820 3823 3824 3831 yangwucheng)
- Support map datatype for SQL engine(3841 3847 aceforeverd)
- Support TiDB backend for online and offline storage(3815 3839 yht520100)
- Kafka connector support string timestamp and partial insert(3834 vagetablechicken)
- Support arbitrary spark distribution and remove dependency of OpenMLDB Spark(3849 tobegit3hub)
- Support insert function in offline mode(3854 Matagits)
- Support feature signature with SQL functions(3877 wyl4pd)
- Support request mode in raw SQL(3874 aceforeverd)

Bug Fixes
- Fix delete with same ts(3780 dl239)
- Fix '\x00' Issue in Python SDK Precompiled SQL Inserts(3788 yht520100)
- Fix import spark config when creating like hive(3792 vagetablechicken)
- Fix select constant return empty value in offline (3825 Matagits)
- Fix show and load sql to print result set for notebook magic function(3856 tobegit3hub)
- Fix TTL merge for different types(3859 vagetablechicken)
- Fix ddl parser when getting duplicated column keys(3873 vagetablechicken)
- Fix initializing nameserver bug when calling zk RegisterName(3869 oh2024)

Testing
- Set NPROC in intergration test(3782 dl239)
- Support map data type in yaml testing framework(3765 aceforeverd)
- Add automatic table cleanup after go sdk tests(3799 oh2024)
- Fix sql_cmd_test and no impl for MakeMergeNode(3829 aceforeverd)
- Add query performance benchmark(3855 gaoboal)

Features
- Support Iceberg as an offline storage (3737 vagetablechicken)
- Support `UNION ALL` statement (3590 3653 aceforeverd)
- Support `SELECT ... INTO OUTFILE` to OpenMLDB online tables (3616 tobegit3hub)
- Support `LAST JOIN` and `WINDOW` without `ORDER BY` in offline mode (3619 aceforeverd)
- Support `CREATE/ALTER/DROP USER` statement (3678 3745 3747 dl239, 3744 tobegit3hub)
- Support specifying Spark configurations in the SDK (3613 tobegit3hub)
- `INSERT`returns failure if the server-side memory usage exceeds the specified limit (3631 dl239)
- Add a new interfact for SQLs to DAG (3630 aceforeverd)
- If the deployed SQL contains the `LEFT JOIN`, the indexs will be created automatically. (3667 aceforeverd)
- Support automatic deletion of logs (3704 3736 3706 dl239)
- Support `absandlat/absorlat` TTL type for disktable (3716 dl239)
- Optimize error messages for insert failures (3725 vagetablechicken)
- Improve the documents (3617 3519 3690 3699 vagetablechicken, 3612 dl239, 3609 3672 3687 aceforeverd, 3649 3570 3569 TanZiYen Elliezza, 3665 DrDub, 3585 3584 3579 3578 3574 3573 3552 3539 3488 3477 3475 3586 3470 3474 3568 3583 3564 3764 TanZiYen, 3688 3697 3753 3721 3731 3739 3754 3720 3756 3762 3752 3757 3719 Elliezza, 3075 Elliezza tobegit3hub, 3710 tobegit3hub)
- Other minor features (3623 3636 aceforeverd, 3651 tobegit3hub, 3641 3692 vagetablechicken, 3582 3702 dl239, 3674 lqy222)

Bug Fixes
- Executing offline tasks will consume an excessive number of ZooKeeper connections (3642 dl239)
- There is no automatic reconnection after ZooKeeper disconnection in SDK. (3656 3668 vagetablechicken)
- The `FlexibleRowBuilder` will throw a `NullPointerException` if set with a null value (3649 dl239)
- If the length of strings in the imported data exceeds 255, it may throw a `BufferOverflowException`. (3729 ljwh)
- If a table contains a large amount of data, querying the data may still be possible after executing `TRUNCATE` (3677 dl239)
- After deleting data, it can still be retrieved from other indexes (3693 dl239)
- Delete dirty data when insertion fails (3681 dl239)
- When there are no tables, getting databases using `GetAllDbs` fails. (3742 vagetablechicken)
- Adding a deleted index fails if the index name is different from the previous name (3635 dl239)
- Other minor bug fixes (3638 3654 3717 3726 3743 vagetablechicken, 3607 3775 dl239, 3640 tobegit3hub, 3686 3735 3738 3740 aceforeverd, 3759 yangwucheng)

Code Refactoring
3666 vagetablechicken