-
Notifications
You must be signed in to change notification settings - Fork 3.7k
[fix](nereids) change default agg strategy to multi_distinct when not have statistics #55855
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
[fix](nereids) change default agg strategy to multi_distinct when not have statistics #55855
Conversation
|
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
|
run buildall |
TPC-H: Total hot run time: 35055 ms |
TPC-DS: Total hot run time: 189475 ms |
ClickBench: Total hot run time: 30.11 s |
FE UT Coverage ReportIncrement line coverage |
FE Regression Coverage ReportIncrement line coverage |
|
run buildall |
TPC-H: Total hot run time: 34645 ms |
TPC-DS: Total hot run time: 189924 ms |
ClickBench: Total hot run time: 30.46 s |
|
run buildall |
FE Regression Coverage ReportIncrement line coverage |
TPC-H: Total hot run time: 34791 ms |
TPC-DS: Total hot run time: 187585 ms |
ClickBench: Total hot run time: 29.8 s |
FE UT Coverage ReportIncrement line coverage |
FE Regression Coverage ReportIncrement line coverage |
|
PR approved by at least one committer and no changes requested. |
|
PR approved by anyone and no changes requested. |
What problem does this PR solve?
Issue Number: close #xxx
Related PR: #54079
Problem Summary:
Using the multi-distinct strategy instead of multi-stage/CTE splitting strategy for AGG in scenarios without statistical information, consistent with the default strategy before refactor(#54079), can achieve better performance in scenarios without statistical information.
Release note
None
Check List (For Author)
Test
Behavior changed:
Does this need documentation?
Check List (For Reviewer who merge this PR)