[SERVER-58478] Extend Simple8b to support decimal 128 Created: 13/Jul/21  Updated: 29/Oct/23  Resolved: 18/Aug/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 2021-08-09, Execution Team 2021-08-23
Participants:

 Description   

This ticket aims to extend decimal 128 encoding for simple8b. 

The encoding will go as follows, we will take the delta's between decimal 128 and if the number of leading and trailing zeros will allow us to fit the value bits in <60 bits, we will store using simple8b. Otherwise, we will store without compression.

Cases:

Value Bits between 0 and 49 



 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 [ 18/Aug/21 ]

Author:

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

Message: SERVER-58478 Add decimal128 support to simple8b
Branch: master
https://github.com/mongodb/mongo/commit/1f86f1e8176487d600ccb5d4819e0aafb1e978c0

Comment by Luke Bhan (Inactive) [ 18/Aug/21 ]

https://spruce.mongodb.com/version/611d3da70ae60610fe174825/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC

Comment by Luke Bhan (Inactive) [ 11/Aug/21 ]

https://mongodbcr.appspot.com/816780005/

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