[SERVER-32308] Add the ability for a $lookup stage to execute on mongos against a sharded foreign collection Created: 13/Dec/17 Updated: 30/Oct/23 Resolved: 14/Dec/18 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | Aggregation Framework, Querying |
| Affects Version/s: | None |
| Fix Version/s: | 4.1.7 |
| Type: | New Feature | Priority: | Major - P3 |
| Reporter: | David Storch | Assignee: | James Wahlin |
| Resolution: | Fixed | Votes: | 4 |
| 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: | Query 2018-01-01, Query 2018-01-15, Query 2018-12-17 | ||||||||||||||||||||||||||||
| Participants: | |||||||||||||||||||||||||||||
| Linked BF Score: | 100 | ||||||||||||||||||||||||||||
| Description |
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In order to support $changeStreams "updateLookup" functionality (see the documentation here), the aggregation subsystem now has machinery for $lookup-like query execution on mongos. We should extend this functionality to work for the $lookup stage itself:
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| Comments |
| Comment by Githook User [ 14/Dec/18 ] |
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Author: {'username': 'jameswahlin', 'email': 'james@mongodb.com', 'name': 'James Wahlin'}Message: |
| Comment by James Wahlin [ 14/Dec/18 ] |
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Reopening to address memory leak when an exception is thrown in attachCursorSourceToPipeline(). |
| Comment by Githook User [ 13/Dec/18 ] |
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Author: {'name': 'Benety Goh', 'email': 'benety@mongodb.com', 'username': 'benety'}Message: |
| Comment by James Wahlin [ 12/Dec/18 ] |
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Reopening to address BF-11527, a compile_all failure on the "* Enterprise Windows 2008R2 compile_all" and "* Windows 2008R2 DEBUG" due to an unused variable in document_source_lookup_change_post_image_test.cpp. |
| Comment by Githook User [ 12/Dec/18 ] |
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Author: {'name': 'James Wahlin', 'email': 'james@mongodb.com', 'username': 'jameswahlin'}Message: |
| Comment by Nicholas Zolnierz [ 16/Jan/18 ] |
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Re-opening this ticket as we're currently re-evaluating the priority of the sharded $lookup project. |
| Comment by Githook User [ 16/Jan/18 ] |
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Author: {'email': 'nicholas.zolnierz@mongodb.com', 'name': 'Nick Zolnierz', 'username': 'nzolnierzmdb'}Message: Revert " This reverts commit 7298d273c0497f2720ec1471ad0f4910bff07af4. |
| Comment by Githook User [ 12/Jan/18 ] |
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Author: {'email': 'nicholas.zolnierz@mongodb.com', 'name': 'Nick Zolnierz', 'username': 'nzolnierzmdb'}Message: |