[SERVER-1116] qo recover from stale index Created: 13/May/10  Updated: 27/Jan/15  Resolved: 27/Jan/15

Status: Closed
Project: Core Server
Component/s: Querying
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Minor - P4
Reporter: Aaron Staple Assignee: David Storch
Resolution: Duplicate Votes: 0
Labels: query_triage
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
duplicates SERVER-15225 CachedPlanStage should execute for tr... Closed
Related
related to SERVER-8664 Improve query optimizer sampling algo... Closed
is related to SERVER-10026 New query system Closed
Participants:

 Description   

An index may look good initially, but be less effective later on, during the getMore stage. Now that we have a MultiPlanScanner we could potentially try out alternative indexes in mid stream and select a better performing candidate.



 Comments   
Comment by David Storch [ 27/Jan/15 ]

This idea sounds similar to SERVER-15225. Since SERVER-15225 describes this idea in newer terminology as it applies to the re-written query engine, I am closing this one as a duplicate.

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