[SERVER-58479] Add Delta Funciton for computing the deltas between two types Created: 13/Jul/21  Updated: 29/Oct/23  Resolved: 27/Jul/21

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 5.1.0-rc0

Type: Task Priority: Major - P3
Reporter: Luke Bhan (Inactive) Assignee: Luke Bhan (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Sprint: Execution Team 2021-07-26, Execution Team 2021-08-09
Participants:

 Description   

Add state for holding the previous value in encodeDouble such that we now encode the delta between two encodes rather then just the value. This should increase the number of leading and trailing zeros which should allow more compression. 



 Comments   
Comment by Vivian Ge (Inactive) [ 06/Oct/21 ]

Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it’s been triggered. For more active release information, please keep an eye on #server-release. Thank you!

Comment by Githook User [ 27/Jul/21 ]

Author:

{'name': 'lukebhan', 'email': 'luke.bhan@vanderbilt.edu', 'username': 'lukebhan'}

Message: SERVER-58479 Fix double encode and decode function
Branch: master
https://github.com/mongodb/mongo/commit/296d372ac2d137f34a7c05fd2c9a95615204e3a5

Comment by Luke Bhan (Inactive) [ 27/Jul/21 ]

https://spruce.mongodb.com/version/6100343c3066156d6e179c86/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC

 

Not adding deltas at this level. Fixed up double to just return int64_t

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