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.
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.
Add support of murmur_hash3_64. #14636
Add timezone cache for convert_tz to improve performance. #14616
Sort result by tablename when call show clause. #14492
Fix coredump when there is a if constant expr in select clause. #14858
ColumnVector::insert_date_column may crashed. #14839
Update high_priority_flush_thread_num_per_store default value to 6 and it will improve the load performance. #14775
Fix quick compaction core. #14731
Partition column is not duplicate key, spark load will throw IndexOutOfBounds error. #14661
Fix a memory leak problem in VCollectorIterator. #14549
Fix create table like when having sequence column. #14511
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. #14821