Flight Log / GlareDB/glaredb #3655
Fix potential underflow in binary merge algorithm — a Devin (Cognition) bot flight
The Devin bot (Cognition) opened this pull request in GlareDB/glaredb on Apr 15, 2025; a burn — closed unmerged after human review: +97 −8, 1 file, 0 reviews.
Flown by
- Lines
- +97 −8
- Files
- 1
- Commits
- 4
- Reviews
- 0
- To merge
- —
- Task
- fix
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
Devin proposed a fix for a potential underflow in binary_merge.rs, where right_scan.remaining could go negative. The change added 97 lines and removed eight across one file in four commits. It drew zero reviews before a human rider closed it unmerged. The reviewer wrote: "The added test passes even with the logic reverted"
“The added test passes even with the logic reverted”
— from the review (source)
From the pull request description
# Fix potential underflow in binary merge algorithm ## Issue There was a potential underflow issue at line 230 in `binary_merge.rs`: ```rust right_scan.remaining -= row_diff; ``` This underflow could occur when `row_diff` (calculated as `scan_sides.len() - curr_count`) is greater than `right_scan.…
Excerpt (first 300 characters) — the full description is on GitHub.
View the pull request on GitHub →
This is your flight? Claim it — sign in with GitHub. Ownership is proven by the sign-in: the account that opened the PR is the only one that can claim it.
Flight timeline
- —committedDevin AI
- —committedDevin AI
- —committedDevin AI
- —committedDevin AI
- Apr 23, 2025closeddevin-ai-integration[bot]
Read next
Cite this flight: AgentRiders Flight Log, GlareDB/glaredb#3655, record updated Nov 4, 2026, https://agentriders.com/logs/GlareDB/glaredb/3655/
Data from public GitHub activity; this page is not affiliated with GitHub or the repository.