[COMPASS-3773] Explain Plan: show regex performance (nr of steps) Created: 23/Jul/19  Updated: 03/Dec/21  Resolved: 01/Aug/19

Status: Closed
Project: Compass
Component/s: Performance
Affects Version/s: None
Fix Version/s: None

Type: New Feature Priority: Minor - P4
Reporter: Mark Vasile Assignee: Unassigned
Resolution: Won't Do Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
depends on SERVER-42574 Explain Plan: show regex performance ... Backlog
Sprint: Iteration Kangaroo

 Description   

The Explain Plan of Compass is quite interesting. Maybe use a regex debugging library to compute the number of steps a regex takes to complete. For example: https://metacpan.org/pod/Regexp::Debugger

The idea is to give the users the awareness of performance penalties for regular expression queries, especially complex ones that backtrack a lot.



 Comments   
Comment by Massimiliano Marcon [ 01/Aug/19 ]

Hi mark_vasile@xica.net, thank you for bringing this up. As this is something that should be supported by the server, I opened a ticket in the SERVER project to track it (SERVER-42574).

Generated at Wed Feb 07 22:34:11 UTC 2024 using Jira 9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66.