Release Note 1.2.3

[morningman]

Release Note 1.2.2

Improvement

• JDBC Catalog

  • Support connecting to Doris clusters through JDBC Catalog.
    • https://doris.apache.org/zh-CN/docs/dev/lakehouse/multi-catalog/jdbc#doris
  • Support to synchronize only the specified database through the only_specified_database attribute.
  • Support synchronizing table names in the form of lowercase through lower_case_table_names to solve the problem of case sensitivity of table names.
    • https://doris.apache.org/zh-CN/docs/dev/lakehouse/multi-catalog/jdbc
  • Optimize the read performance of JDBC Catalog.

• Elasticsearch Catalog

  • Support Array type mapping.
  • Support whether to push down the like expression through the like_push_down attribute to control the CPU overhead of the ES cluster.
    • https://doris.apache.org/zh-CN/docs/dev/lakehouse/multi-catalog/es

• Hive Catalog

  • Support Hive table default partition __HIVE_DEFAULT_PARTITION__.
  • Hive Metastore metadata automatic synchronization supports notification event in compressed format.

• Dynamic partition supports specifying the storage_medium parameter to control the storage medium of the newly added partition.

  • https://doris.apache.org/zh-CN/docs/dev/advanced/partition/dynamic-partition

• Optimize BE's threading model to avoid stability problems caused by frequent thread creation and destroy.

Bug Fixes

• Fixed issues with Merge-On-Write Unique Key tables.
• Fixed compaction related issues.
• Fixed some delete statement issues causing data errors.
• Fixed several query execution errors.
• Fixed the problem of using JDBC catalog to cause BE crash on some operating system.
• Fixed Multi-Catalog issues.
• Fixed memory statistics and optimization issues.
• Fixed decimalV3 and date/datetimev2 related issues.
• Fixed load transaction stability issues.
• Fixed light-weight schema change issues.
• Fixed the issue of using datetime type for batch partition creation.
• Fixed the problem that a large number of failed broker loads would cause the FE memory usage to be too high.
• Fixed the problem that stream load cannot be canceled after dropping the table.
• Fixed querying information_schema timeout in some cases.
• Fixed the problem of BE crash caused by concurrent data export using select outfile.
• Fixed transactional insert operation memory leak.
• Fixed several query/load profile issues, and supports direct download of profiles through FE web ui.
• Fixed the problem that the BE tablet GC thread caused the IO util to be too high.
• Fixed the problem that the commit offset is inaccurate in Kafka routine load.

Big Thanks

Thanks all who contribute to this release:

@zy-kkk
@zhannngchen
@ZhangYu0123
@zhangstar333
@zclllyybb
@yuxuan-luo
@yixiutt
@yiguolei
@yangzhg
@xinyiZzz
@XieJiann
@xiaokang
@WuWQ98
@WinkerDu
@wangbo
@TangSiyang2001
@SWJTU-ZhangLei
@starocean999
@stalary
@sohardforaname
@SaintBacchus
@qzsee
@qidaye
@platoneko
@nextdreamblue
@mrhhsg
@morrySnow
@morningman
@maochongxin
@luwei16
@luozenglin
@liaoxin01
@Kikyou1997
@Jibing-Li
@jacktengg
@htyoung
@HappenLee
@Gabriel39
@freemandealer
@englefly
@eldenmoon
@dutyu
@Doris-Extras
@chenlinzhong
@catpineapple
@Cai-Yao
@caiconghui
@ByteYue
@BiteTheDDDDt
@bingandbing
@BePPPower
@adonis0147