Release 2.0.5

Thanks to our community users and developers, about 217 improvements and bug fixes have been made in Doris 2.0.5 version.

Quick Download： https://doris.apache.org/download/

GitHub： https://github.com/apache/doris/releases

Behavior change

• Change char function behaviour: select char(0) = '\0' return true as MySQL
  • https://github.com/apache/doris/pull/30034
• Allow exporting empty data
  • https://github.com/apache/doris/pull/30703

New features

• Eliminate left outer join with is null condition
• Add show-tablets-belong stmt for analyzing a batch of tablet-ids
• InferPredicates support In, such as a = b & a in [1, 2] -> b in [1, 2]
• Optimize plan when column stats are unavailable
• Optimize plan using rollup column stats
• Support analyze materialized view
• Support ShowProcessStmt Show all FE connection

Improvement and optimizations

• Optimize query plan when column stats are unaviable
• Optimize query plan using rollup column stats
• Stop analyze quickly after user close auto analyze
• Catch load column stats exception, avoid print too much stack info to fe.out
• Select materialized view by specify the view name in SQL
• Change auto analyze max table width default value to 100
• Escape characters for columns in recovery predicate pushdown in JDBC Catalog
• Fix JDBC MYSQL Catalog to_date fun pushdown
• Optimize the close logic of JDBC client
• Optimize JDBC connection pool parameter settings
• Obtain hudi partition information through HMS's API
• Optimize routine load job error msg and memory
• Skip all backup/restore jobs if max allowd option is set to 0

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

Credits

Thanks all who contribute to this release:

airborne12, alexxing662, amorynan, AshinGau, BePPPower, bingquanzhao, BiteTheDDDDt, ByteYue, caiconghui, cambyzju, catpineapple, dataroaring, eldenmoon, Emor-nj, englefly, felixwluo, GoGoWen, HappenLee, hello-stephen, HHoflittlefish777, HowardQin, JackDrogon, jacktengg, jackwener, Jibing-Li, KassieZ, LemonLiTree, liaoxin01, liugddx, LuGuangming, morningman, morrySnow, mrhhsg, Mryange, mymeiyi, nextdreamblue, qidaye, ryanzryu, seawinde,starocean999, TangSiyang2001, vinlee19, w41ter, wangbo, wsjz, wuwenchi, xiaokang, XieJiann, xingyingone, xy720,xzj7019, yujun777, zclllyybb, zhangstar333, zhannngchen, zhiqiang-hhhh, zxealous, zy-kkk, zzzxl1993