Checksum serialisation can collide
Open
Nobody has claimed this yet.
bug
ChatGPT
triage
- Dominant language
- R
- Stars
- 8
- Forks
- 4
- PR merge metrics
- No merged PRs in 30d
Description
Describe the bug
Checksum serialisation can collide. NA values are converted to empty strings before hashing, so NA and "" can hash identically. Delimiter-based concatenation can also collide for values containing delimiters.
To Reproduce
N/A
Expected behaviour
N/A
Screenshots
N/A
Provide output from sessionInfo()
N/A
- I have checked that the bug is not already described in open issues
Additional context
N/A
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No file or test is named. Locate the checksum serialization entry point, reproduce collisions for NA versus empty strings and delimiter-containing values, then add regression coverage and verify distinct inputs produce distinct checksums.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- r
- Domain
- database
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 42/100