[WIP][SPARK-31973][SQL] Skip partial aggregates in run-time if reduction ratio is low #33161
Conversation
This file contains hidden or 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
|
Can one of the admins verify this patch? |
Co-authored-by: Karuppayya Rajendran <[email protected]>
shipra-a
force-pushed
the
SPARK-31973-shipra
branch
from
1ab98e5 to
0453804
Compare
shipra-a
force-pushed
the
SPARK-31973-shipra
branch
from
0453804 to
a7e97dd
Compare
|
We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.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.
What changes were proposed in this pull request?
This PR builds on top of #28804. In addition to the other PR, one other change is that the partial aggregation hashmap is freed as soon as partial aggregation is disabled to prevent off-heap OOMs.
Why are the changes needed?
This change can help improve query performance.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Existing and additional unit tests.