Details
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Bug
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Resolution: Fixed
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Major - P3
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None
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None
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None
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Fully Compatible
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ALL
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QE 2021-10-04
Description
This test takes a pipeline with a supported $sum accumulator, which will be eligible for pushdown into sbe.
testPipeline([{$group: {_id: "$groupKey", sum: {$sum: "$val"}}}]); |
Then the test compares the explain between running the pipeline alone and running the pipeline as an inner pipeline of $unionWith. We don't bother to pushdown $group when it's inside $unionWith, so naturally the explain plans are different. This work should figure out what the right update is for the test.
Attachments
Issue Links
- related to
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SERVER-60254 Implement $group pushdown when sub-planning is involved
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- Closed
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