Since T237300, the Compare results table can be sorted by any column, as long as there is only one page of results. This is done using the jquery.tablesorter module.
IPv6 addresses do not yet sort properly, as identified in T237300#6215030.
Two things need to be done to fix this:
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Open | None | T255694 Sort IP addresses properly in the Special:Investigate Compare results table | |||
| Resolved | Tchanders | T257349 Sort IP addresses by their numerical value in the Special:Investigate Compare results table | |||
| Open | BUG REPORT | None | T255693 Add an option for non-numeric collation in the tablesorter |
Change 605330 had a related patch set uploaded (by Tchanders; owner: Tchanders):
[mediawiki/extensions/CheckUser@master] ComparePager: Add sort values to the results for the tablesorter
Changing tablesorter to detect and sort hex (base 16) numbers correctly seems tricky.
Why not convert the base 16 number representations back to base 10? It's the same number, it'll sort correctly, and they are not displayed anywhere anyway, just used in data-sort-value.
IPv6 addresses would present a small problem, since they're 128-bit, so they probably wouldn't be sorted correctly as JavaScript can't represent them precisely (MAX_SAFE_INTEGER is 53-bit). You can work around that by splitting them into smaller chunks, e.g. 32-bit (8 hex digits), and putting those in data-sort-value (separated by spaces).