xiaokang commented on issue #31356: URL: https://github.com/apache/doris/issues/31356#issuecomment-1966284379
中文版release note如下: ## 1 行为变更 - `select char(0) = '\0' ` 返回true,跟MySQL的行为保持一致 - https://github.com/apache/doris/pull/30034 - export导出数据支持空表 - https://github.com/apache/doris/pull/30703 ## 2 新功能 - 利用过滤条件中的is null谓词,将outer join转换为anti join - 增加`SHOW TABLETS BELONG`语法用于获取tablet属于哪个table - InferPredicates 支持IN,例如:`a = b & a in [1, 2] -> b in [1, 2]` - 支持对物化视图收集统计信息 - `SHOW PROCESSLIST`支持输出连接对应的fe - export导出csv文件支持通过 with_bom 参数控制是否带有Windows BOM ## 3 改进和优化 - 在无统计信息时优化query plan - 基于rollup的统计信息优化query plan - 用户停止auto analyze后尽快停止统计信息收集任务 - 缓存统计信息收集异常,避免大约太多异常栈 - 支持在SQL中自定使用某个物化视图 - JDBC catalog 谓词下推列名字符转义 - 修复MySQL catalog中`to_date`函数下推的问题 - 优化JDBC客户端连接关闭的逻辑,在异常时正常取消查询 - 优化JDBC连接池的参数 - 通过HMS API获取hudi外表的分区信息 - 优化routine load的内存占用和错误信息 - 如果max_backup_restore_job_num_per_db参数为0,跳过所有备份恢复任务 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org