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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2022/06/18 02:37:54 UTC
[GitHub] [pinot] Jackie-Jiang opened a new pull request, #8921: Prevent over allocating for group-by reduce
Jackie-Jiang opened a new pull request, #8921:
URL: https://github.com/apache/pinot/pull/8921
When a group-by query has very large LIMIT, we over-allocate the array even if there are not that many records returned.
This PR:
- Allocate array based on both the LIMIT and number of records returned
- Short-circuit the calculation when there is no record returned, or LIMIT is 0
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[GitHub] [pinot] codecov-commenter commented on pull request #8921: Prevent over allocating for group-by reduce
Posted by GitBox <gi...@apache.org>.
codecov-commenter commented on PR #8921:
URL: https://github.com/apache/pinot/pull/8921#issuecomment-1159352047
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```diff
@@ Coverage Diff @@
## master #8921 +/- ##
=============================================
- Coverage 69.73% 25.07% -44.67%
+ Complexity 4856 47 -4809
=============================================
Files 1809 1797 -12
Lines 94331 93984 -347
Branches 14069 14032 -37
=============================================
- Hits 65784 23562 -42222
- Misses 23970 68130 +44160
+ Partials 4577 2292 -2285
```
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[GitHub] [pinot] Jackie-Jiang merged pull request #8921: Prevent over allocating for group-by reduce
Posted by GitBox <gi...@apache.org>.
Jackie-Jiang merged PR #8921:
URL: https://github.com/apache/pinot/pull/8921
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