[SERVER-81052] [CQF] More robust picking of best plan Created: 13/Sep/23 Updated: 29/Oct/23 Resolved: 18/Sep/23 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | 7.2.0-rc0 |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Svilen Mihaylov (Inactive) | Assignee: | Svilen Mihaylov (Inactive) |
| 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 | ||||||||
| Participants: | |||||||||
| Description |
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When cost is identical to previous plan, retain if the current plan simpler in terms of complexity than the previous one. This will help improve robustness of plans in cases where the costs and/or CE is identical. The measure of complexity is the number of plan elements in the plan. |
| Comments |
| Comment by Githook User [ 18/Sep/23 ] |
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Author: {'name': 'Svilen Mihaylov', 'email': 'svilen.mihaylov@mongodb.com', 'username': 'svilen-mihaylov'}Message: |