[SERVER-64091] Ensure that pushed down $lookup works correctly when the foreign collection does not exist Created: 01/Mar/22 Updated: 29/Oct/23 Resolved: 21/Mar/22 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | Backlog |
| Fix Version/s: | 6.0.0-rc0 |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Mihai Andrei | Assignee: | Rui Liu |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Backwards Compatibility: | Fully Compatible | ||||||||
| Sprint: | QE 2022-04-04, QE 2022-03-21 | ||||||||
| Participants: | |||||||||
| Description |
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When the 'from' collection in a $lookup doesn't exist, we should produce an empty array in the 'as' field for each output document. This ticket tracks the work to ensure that this works for each join algorithm implemented in this project. |
| Comments |
| Comment by Githook User [ 19/Mar/22 ] |
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Author: {'name': 'Rui Liu', 'email': 'rui.liu@mongodb.com', 'username': 'lriuui0x0'}Message: |