[SERVER-61998] Add an oplog MatchExpression rewrite for the "fullDocumentBeforeChange" field Created: 12/Dec/21 Updated: 29/Oct/23 Resolved: 15/Aug/22 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | 6.1.0-rc0 |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Bernard Gorman | Assignee: | Naomie Gao (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | change-stream-rewrite | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Backwards Compatibility: | Fully Compatible |
| Sprint: | QE 2022-07-11, QE 2022-07-25, QE 2022-08-08, QE 2022-08-22 |
| Participants: |
| Description |
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See here. This should be a very simple rewrite which just filters out events that can never match the predicate on fullDocumentBeforeChange, generally anything other than {op: "u"} and {op: "d"}. We can't actually evaluate the predicate fully since we don't have the pre-image until later in the pipeline. |