[SERVER-82817] Implement corresponding Stage Builder changes for Window Function to optimize projections Created: 06/Nov/23 Updated: 02/Feb/24 |
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| Status: | Blocked |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Rushan Chen | Assignee: | Foteini Alvanaki |
| Resolution: | Unresolved | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Sprint: | QE 2023-12-11, QE 2023-12-25, QE 2024-01-08, QE 2024-01-22, QE 2024-02-05, QE 2024-02-19 | ||||||||
| Participants: | |||||||||
| Description |
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SERVER-81466improves how projections are generated by Stage Builder. It was merged Nov 4th. Stage Builder for window function can use this change to optimize the partition expressions for $linearFill to avoid redundant $project/addFields. The limitation placed in https://jira.mongodb.org/browse/SERVER-83490 should be removed as part of this work. |
| Comments |
| Comment by Foteini Alvanaki [ 15/Nov/23 ] |
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At the moment, we cannot use the new method for setWindowFields because it does not yet support fields that are created in a stage and propagated to the projection. SERVER-83235 will add this functionality. |