[SERVER-60759] Eliminate mkbson stage when multiple $group stages are pushed down Created: 15/Oct/21 Updated: 29/Oct/23 Resolved: 21/Oct/21 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | 5.2.0 |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Yoon Soo Kim | Assignee: | Yoon Soo Kim |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Backwards Compatibility: | Fully Compatible |
| Sprint: | QE 2021-11-01 |
| Participants: |
| Description |
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Eliminate PROJECT_SIMPLE for the following query solution tree. GROUP - GROUP - PROJECTION_SIMPLE This is a prerequisite to remove intermediate mkbson stage between GROUP and GROUP. And then we can remove intermediate mkbson stage. |
| Comments |
| Comment by Yoon Soo Kim [ 15/Oct/21 ] |
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Draft PR: https://github.com/10gen/mongo/pull/1341 |