-
Notifications
You must be signed in to change notification settings - Fork 3.3k
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
[improvement](statistics)Support auto analyze columns that haven't been analyzed for a long time. #42399
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
run buildall |
TPC-H: Total hot run time: 41185 ms
|
TPC-DS: Total hot run time: 192221 ms
|
ClickBench: Total hot run time: 32.48 s
|
Jibing-Li
force-pushed
the
24hours
branch
3 times, most recently
from
October 25, 2024 07:06
b941eae
to
7adbd1f
Compare
Jibing-Li
requested review from
dataroaring,
CalvinKirs and
morningman
as code owners
October 25, 2024 07:07
run buildall |
TPC-H: Total hot run time: 41053 ms
|
TPC-DS: Total hot run time: 192416 ms
|
ClickBench: Total hot run time: 32.42 s
|
run buildall |
TPC-H: Total hot run time: 41620 ms
|
TPC-DS: Total hot run time: 191814 ms
|
ClickBench: Total hot run time: 31.97 s
|
run cloud_p0 |
run buildall |
TPC-H: Total hot run time: 39765 ms
|
TPC-DS: Total hot run time: 195861 ms
|
ClickBench: Total hot run time: 32.67 s
|
TPC-DS: Total hot run time: 197674 ms
|
ClickBench: Total hot run time: 33.3 s
|
run buildall |
TPC-H: Total hot run time: 39880 ms
|
TPC-DS: Total hot run time: 197233 ms
|
ClickBench: Total hot run time: 32.81 s
|
run p0 |
morningman
approved these changes
Dec 10, 2024
github-actions
bot
added
the
approved
Indicates a PR has been approved by one committer.
label
Dec 10, 2024
PR approved by at least one committer and no changes requested. |
PR approved by anyone and no changes requested. |
morrySnow
approved these changes
Dec 11, 2024
github-actions bot
pushed a commit
that referenced
this pull request
Dec 11, 2024
…en analyzed for a long time. (#42399) Support auto analyze columns that haven't been analyzed for a long time. Add a very low priority job queue for auto analyze to process this kind of columns. The purpose of this change is to make sure all tables could be auto analyzed within a certain time. In the earlier Doris versions, users often encounter this kind of issues: User load some new data to a large table everyday, but the change rate (percentage of new data) is very low, because there is a large size of old data. In this case, auto analyze for this table will not be triggered for a very long time, because the default trigger threshold of auto analyze is 40% (more than 40% of the data in a table is changed since last analyze). This will probably cause a bad plan because min/max/ndv statistics are outdated.
Jibing-Li
added a commit
that referenced
this pull request
Dec 11, 2024
…t haven't been analyzed for a long time. #42399 (#45281) Cherry-picked from #42399 Co-authored-by: James <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Labels
approved
Indicates a PR has been approved by one committer.
dev/2.1.8-merged
dev/3.0.4-merged
reviewed
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Support auto analyze columns that haven't been analyzed for a long time. Add a very low priority job queue for auto analyze to process this kind of columns.
The purpose of this change is to make sure all tables could be auto analyzed within a certain time. In the earlier Doris versions, users often encounter this kind of issues:
User load some new data to a large table everyday, but the change rate (percentage of new data) is very low, because there is a large size of old data. In this case, auto analyze for this table will not be triggered for a very long time, because the default trigger threshold of auto analyze is 40% (more than 40% of the data in a table is changed since last analyze). This will probably cause a bad plan because min/max/ndv statistics are outdated.