Release Note 1.1.5 #15032
Description
Upgrade Notes
In this release, Doris Team has fixed about 36 issues or performance improvement since 1.1.4. This release is a bugfix release on 1.1 and all users are encouraged to upgrade to this release.
Behavior Changes
- When alias name is same as the original column name like "select year(birthday) as birthday" and use it in group by, order by , having clause, doris's behavior is different from MySQL in the past. In this release, we make it follow MySQL's behavior. Group by and having clause will use original column at first and order by will use alias first. It maybe a litter confuse here so there is a simple advice here, you'd better not use an alias the same as original column name.
Features
- Add support of murmur_hash3_64. [function](hash) add support of murmur_hash3_64 #14636
Improvements
- Add timezone cache for convert_tz to improve performance. [improvement](function) add timezone cache for convert_tz #14616
- Sort result by tablename when call show clause. [Enhancement](meta) sort result by tablename when show tables like sh… #14492
Bug Fix
- Fix coredump when there is a if constant expr in select clause. [fix](if) fix coredump of if const #14858
- ColumnVector::insert_date_column may crashed [fix](ColumnVector) ColumnVector::insert_date_column crashed #14839
- Update high_priority_flush_thread_num_per_store default value to 6 and it will improve the load performance. [improvement](config) update high_priority_flush_thread_num_per_store default value to 6 #14775
- Fix quick compaction core. [bugfix](compaction) fix quick compaction core #14731
- Partition column is not duplicate key, spark load will throw IndexOutOfBounds error [fix](spark load)partition column is not duplicate key, spark load IndexOutOfBounds error #14661
- Fix a memory leak problem in VCollectorIterator [fix](iterator) Fix leak in VCollectorIterator #14549
- Fix create table like when having sequence column [fix](ddl) fix create table like when having sequence column (#10464) #14511
- Using avg rowset to calculate batch size instead of using total_bytes since it costs a lot of cpu [improvement](scanner) using avg rowset to calculate batch size instead of using total_bytes since it costs a lot of cpu #14273
- Fix right outer join core with conjunct [fix](vectorization) Fix right outer join core with conjunct #14821
- Optimize policy of tcmalloc gc [fix](tcmalloc_gc) optimize policy of tcmalloc gc #14777 [fix](tcmalloc) gc does not work in somecases #14738 [improvement](tcmalloc) add moderate mode and avoid oom with a lot of… #14374