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Release Note 2.0.3 #27909
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我们在使用部分列更新功能的时候遇到这样一个问题(使用的是2.02版本): |
撒时候正式发布啊 |
对 Automatic Collection、统计信息有点兴趣,最近有什么开发计划吗? |
@morningman |
You can describe your problems more explicitly in https://github.com/apache/doris/issues or https://github.com/apache/doris/discussions. |
Welcome, I will contact you later |
This week. Thanks for your attention. |
中文版本的Release Note 感谢Doris社区参与2.0.3版本的100多位开发者和用户,这版本包含了统计信息、倒排索引、复杂数据类型、数据湖、分布式副本管理等近1000项改进与修复。 1 行为变更
2 新功能2.1 支持自动统计信息收集通过收集统计信息有助于优化器了解数据分布特性,选择更优的计划以大幅提升查询效率。从2.0.3版本开始正式支持,默认为全天开启状态。 更多信息请参考:https://doris.apache.org/docs/query-acceleration/statistics/ 2.2 数据湖更多系统支持复杂数据类型
2.3 增加更多内置函数
3 改进和优化3.1 性能优化
3.2 分布式副本管理改进包括跳过删除分区,colocate group ,持续写时均衡失败,冷热分层表不能均衡等 3.3 安全性提升
4 bugfix和稳定性提升4.1 复杂数据类型
4.2 倒排索引
4.3 物化视图
4.4 采样查询
4.5 主键表
4.6 导入和compaction
4.7 数据湖兼容性
4.8 JDBC外表兼容性
4.9 SQL规划和优化
|
发版了吗,咋官网还没更新 |
It's in the voting process and will be released tomorrow if vote passed. |
我们的开发语言是 .net,使用的是 ODBC连接Doris 。Doris后期不在维护ODBC了? |
Previous Release Note 2.0.2
Thanks to our community users and developers, about 1000 improvements and bug fixes have been made in Doris 2.0.3 version, including optimizer statistics, inverted index, complex datatypes, data lake, replica management.
1 Behavior change
null
instead ofNULL
.2 New features
2.1 Support collecting statistics for optimizer automatically
Collecting statistics helps the optimizer understand the data distribution characteristics and choose a better plan to greatly improve query performance. It is officially supported starting from version 2.0.3 and is enabled all day by default.
see more:https://doris.apache.org/docs/query-acceleration/statistics/
2.2 Support complex datatypes for more datalake source
2.3 Add more builtin functions
3 Improvement and optimizations
3.1 Performance optimizations
uuid-numeric
function that returns largeint, which is 20 times faster thanuuid
function that returns string.join
in more scenarios to improve query performance.order by
operators from inline view to improve query performance.3.2 Distributed replica management improvements
Distributed replica management improvements include skipping partition deletion, colocate group deletion, balance failure due to continuous write, and hot and cold seperation table balance.
3.3 Security enhancement
4 Bugfix and stability
4.1 Complex datatypes
break
introduced by #26548. #266334.2 Inverted index
4.3 Materialized View
group by
statements.group by
clause when a view is created.4.4 Table sample
select table tablet
not effective #253784.5 Unique with merge on write
OriginPlanner
#26881partialUpdateCols
in origin planner #272234.6 Load and compaction
4.7 Data Lake compatibility
4.8 JDBC external table compatibility
4.9 SQL Planner and Optimizer
Fix partition prune error in some scenes
Fix incorrect sub-query processing in some scenarios
Fix some semantic parsing errors
Fix data loss during right outer/anti join
Fix incorrect pushing down of predicate pass aggregation operators.
Fix incorrect result header in some cases
Fix incorrect plan when the nullsafeEquals expression (<=>) is used as the join condition
Fix correct column prune in set operation operator.
Others
See the complete list of improvements and bug fixes on github dev/2.0.3-merged .
Big Thanks
Thanks all who contribute to this release:
@adonis0147
@airborne12
@amorynan
@AshinGau
@BePPPower
@bigben0204
@BiteTheDDDDt
@bobhan1
@ByteYue
@CalvinKirs
@CanGuan
@caoliang-web
@catpineapple
@csun5285
@dataroaring
@deadlinefen
@deardeng
@DongLiang-0
@Doris-Extras
@dutyu
@eldenmoon
@englefly
@freemandealer
@fsilent
@Gabriel39
@GoGoWen
@HappenLee
@hello-stephen
@hf200012
@HHoflittlefish777
@HowardQin
@hubgeter
@hust-hhb
@JackDrogon
@jacktengg
@jackwener
@jeffreys-cat
@Jibing-Li
@JingDas
@kaijchen
@kaka11chen
@KassieZ
@Kikyou1997
@Lchangliang
@LemonLiTree
@liaoxin01
@LiBinfeng-01
@liugddx
@liutang123
@lsy3993
@luozenglin
@luwei16
@mongo360
@morningman
@morrySnow
@mrhhsg
@Mryange
@mymeiyi
@neuyilan
@nextdreamblue
@Nitin-Kashyap
@pingchunzhang
@platoneko
@qidaye
@ryanzryu
@seawinde
@shuke987
@sohardforaname
@starocean999
@SWJTU-ZhangLei
@TangSiyang2001
@Tanya-W
@TsukiokaKogane
@vinlee19
@w41ter
@wangbo
@whutpencil
@WinkerDu
@wsjz
@wuwenchi
@Xiaoccer
@xiaokang
@xiedeyantu
@XieJiann
@xinyiZzz
@xuefengze
@XuJianxu
@xy720
@xzj7019
@yagagagaga
@yiguolei
@yujun777
@Yukang-Lian
@Yulei-Yang
@zclllyybb
@zddr
@zfr9527
@zgxme
@zhangguoqiang666
@zhangstar333
@zhangy5
@zhannngchen
@zhiqiang-hhhh
@zy-kkk
@zzzxl1993
@zzzzzzzs
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