[SERVER-30399] Add caching for $lookup non-correlated sub-pipeline prefix Created: 28/Jul/17  Updated: 30/Oct/23  Resolved: 24/Sep/17

Status: Closed
Project: Core Server
Component/s: Aggregation Framework
Affects Version/s: None
Fix Version/s: 3.6.0-rc0

Type: Task Priority: Major - P3
Reporter: James Wahlin Assignee: Bernard Gorman
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
related to SERVER-57483 Results from $lookup stage are not ca... Closed
related to SERVER-57579 DocumentSourceSequentialCache doesn't... Closed
Backwards Compatibility: Fully Compatible
Sprint: Query 2017-08-21, Query 2017-09-11, Query 2017-10-02
Participants:

 Comments   
Comment by Bernard Gorman [ 24/Sep/17 ]

justin.seyster: this patch contains a couple of minor TODO items which the MatchExpression::optimize() patch in SERVER-30991 will need to include:

  • This line will need to be uncommented.
  • The $expr in this test will resolve to a $const rather than a $$var once optimize() is available.

I believe those are the only changes that should be needed - let's sync up in person tomorrow.

Comment by Githook User [ 24/Sep/17 ]

Author:

{'email': 'bernard.gorman@gmail.com', 'name': 'Bernard Gorman', 'username': 'gormanb'}

Message: SERVER-30399 Add caching for $lookup non-correlated sub-pipeline prefix
Branch: master
https://github.com/mongodb/mongo/commit/21f5028d4404ea9584d53bdb81dd63ca8a505d6f

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