Skip to content

Fix off-by-one error in SQL length limit check #5982

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Merged
merged 1 commit into from
Jul 15, 2025
Merged

Fix off-by-one error in SQL length limit check #5982

merged 1 commit into from
Jul 15, 2025

Conversation

ever0de
Copy link
Contributor

@ever0de ever0de commented Jul 15, 2025 •
edited by coderabbitai bot
Loading

@coderabbitai coderabbitai
Copy link
Contributor

coderabbitai bot commented Jul 15, 2025 •
edited
Loading

Walkthrough

The change updates the calculation of the SQL query length in the Statement::new function within the SQLite module. Instead of adding an extra byte to the length, the function now uses the exact byte length of the SQL string when checking against the SQL length limit.

Changes

File(s) Change Summary
stdlib/src/sqlite.rs Modified SQL length calculation in Statement::new to remove extra byte from length check.

Suggested reviewers

  • youknowone

Poem

A bunny with code so precise,
Adjusted the SQL byte slice.
No extra byte to be found,
Just the true length, safe and sound.
Now queries hop right through the gate,
Thanks to code that’s up-to-date! 🐇

📜 Recent review details

Configuration used: .coderabbit.yml
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a54873d and cb61d5a.

⛔ Files ignored due to path filters (1)
  • Lib/test/test_sqlite3/test_regression.py is excluded by !Lib/**
📒 Files selected for processing (1)
  • stdlib/src/sqlite.rs (1 hunks)
🧰 Additional context used
📓 Path-based instructions (1)
**/*.rs

Instructions used from:

Sources:
📄 CodeRabbit Inference Engine

  • .github/copilot-instructions.md
🔇 Additional comments (1)
stdlib/src/sqlite.rs (1)

2302-2302: LGTM! Off-by-one error fix correctly implemented.

The change from sql.byte_len() + 1 to sql.byte_len() correctly fixes the off-by-one error in the SQL length limit check. The SQLite SQLITE_LIMIT_SQL_LENGTH limit specifies the maximum number of bytes allowed in an SQL statement, so the comparison should use the actual byte length without adding an extra byte. This change aligns the RustPython implementation with CPython's behavior and prevents valid SQL statements that are exactly at the limit from being incorrectly rejected.

✨ Finishing Touches
  • 📝 Generate Docstrings

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share
🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

  • Review comments: Directly reply to a review comment made by CodeRabbit. Example:
    • I pushed a fix in commit <commit_id>, please review it.
    • Explain this complex logic.
    • Open a follow-up GitHub issue for this discussion.
  • Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
    • @coderabbitai explain this code block.
    • @coderabbitai modularize this function.
  • PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
    • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
    • @coderabbitai read src/utils.ts and explain its main purpose.
    • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
    • @coderabbitai help me debug CodeRabbit configuration file.

Support

Need help? Create a ticket on our support page for assistance with any issues or questions.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

  • @coderabbitai pause to pause the reviews on a PR.
  • @coderabbitai resume to resume the paused reviews.
  • @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
  • @coderabbitai full review to do a full review from scratch and review all the files again.
  • @coderabbitai summary to regenerate the summary of the PR.
  • @coderabbitai generate docstrings to generate docstrings for this PR.
  • @coderabbitai generate sequence diagram to generate a sequence diagram of the changes in this PR.
  • @coderabbitai resolve resolve all the CodeRabbit review comments.
  • @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
  • @coderabbitai help to get help.

Other keywords and placeholders

  • Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
  • Add @coderabbitai summary to generate the high-level summary at a specific location in the PR description.
  • Add @coderabbitai anywhere in the PR title to generate the title automatically.

Documentation and Community

  • Visit our Documentation for detailed information on how to use CodeRabbit.
  • Join our Discord Community to get help, request features, and share feedback.
  • Follow us on X/Twitter for updates and announcements.

@ever0de ever0de marked this pull request as ready for review July 15, 2025 15:44
@youknowone youknowone merged commit 5957f5d into RustPython:main Jul 15, 2025
12 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers

@youknowone youknowone youknowone approved these changes

Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.
2 participants
@ever0de @youknowone