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Release Note 2.0.6 #31984

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xiaokang opened this issue Mar 8, 2024 · 1 comment
Closed

Release Note 2.0.6 #31984

xiaokang opened this issue Mar 8, 2024 · 1 comment

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@xiaokang
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xiaokang commented Mar 8, 2024

Previous Release Note 2.0.5

Thanks to our community users and developers, about 114 improvements and bug fixes have been created by 51 contributors in Doris 2.0.6 version.

1 Behavior change

N/A

2 New features

  • Support match a function with alias in materialized-view
  • Add a command to drop a tablet replica safely on backend
  • Add row count cache for external table.
  • Support analyze rollup to gather statistics for optimizer

3 Improvement and optimizations

  • Improve tablet schema cache memory by using deterministic way to serialize protobuf
  • Improve show column stats performance
  • Support estimate row count for iceberg and paimon
  • Support sqlserver timestamp type read for jdbc catalog

See the complete list of improvements and bug fixes on github .

Big Thanks

Thanks all who contribute to this release:
@924060929
@AshinGau
@BePPPower
@BiteTheDDDDt
@CalvinKirs
@cambyzju
@deardeng
@DongLiang-0
@eldenmoon
@englefly
@feelshana
@feiniaofeiafei
@felixwluo
@HappenLee
@hust-hhb
@iwanttobepowerful
@ixzc
@JackDrogon
@Jibing-Li
@KassieZ
@larshelge
@liaoxin01
@LiBinfeng-01
@liutang123
@luennng
@morningman
@morrySnow
@mrhhsg
@qidaye
@starocean999
@TangSiyang2001
@wangbo
@wsjz
@wuwenchi
@xiaokang
@XieJiann
@xuwei0912
@xy720
@xzj7019
@yiguolei
@yujun777
@Yukang-Lian
@Yulei-Yang
@zclllyybb
@zddr
@zhangstar333
@zhannngchen
@zhiqiang-hhhh
@zy-kkk
@zzzxl1993

@xiaokang
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xiaokang commented Mar 8, 2024

中文版本:

1 行为变更

2 新功能

  • 自动选择物化视图时支持匹配带别名的函数
  • 增加安全下线一个tablet副本的命令
  • 外表统计信息增加行数统计缓存
  • 统计信息收集支持rollup

3 改进和优化

  • 使用protobuf稳定序列化减少tablet schema缓存内存占用
  • 提升show column stats的性能
  • 统计信息收集和优化器支持iceberg和paimon的行数估计
  • jdbc catalog支持读取SQL Server的timestamp类型

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