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⚡ Bolt: Resolve N+1 query bottleneck in grievance evaluation - #929

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bolt-fix-n1-query-12810709853448038691
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⚡ Bolt: Resolve N+1 query bottleneck in grievance evaluation#929
RohanExploit wants to merge 1 commit into
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bolt-fix-n1-query-12810709853448038691

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@RohanExploit

@RohanExploit RohanExploit commented Jul 21, 2026

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Bolt Performance Optimization

💡 What: Added joinedload(Grievance.jurisdiction) to the _get_grievances_for_evaluation method in backend/escalation_engine.py.
🎯 Why: During periodic grievance evaluation, iterating over active grievances and accessing grievance.jurisdiction.level was causing an N+1 query problem, severely degrading performance as the number of open grievances grows.
📊 Impact: Reduces the number of database queries during escalation evaluation from O(N) to O(1) by eagerly fetching related jurisdiction data in a single SQL JOIN.
🔬 Measurement: Verified that tests pass. Memory and execution time during high-volume scheduled evaluation sweeps will drop significantly.

Also documented this finding in .jules/bolt.md.


PR created automatically by Jules for task 12810709853448038691 started by @RohanExploit


Summary by cubic

Eager-load Grievance.jurisdiction in periodic evaluation to remove N+1 queries when reading jurisdiction.level, cutting DB calls from O(N) to O(1) and speeding up SLA sweeps. Added a note in .jules/bolt.md to document this pattern for future periodic jobs.

Written for commit 7a751c5. Summary will update on new commits.

Review in cubic

Summary by CodeRabbit

  • Performance
    • Improved background escalation evaluations by loading related jurisdiction data more efficiently.
    • Reduced unnecessary database queries during periodic grievance processing.

@google-labs-jules

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Copilot AI review requested due to automatic review settings July 21, 2026 13:54
@RohanExploit
RohanExploit temporarily deployed to bolt-fix-n1-query-12810709853448038691 - vishwaguru-backend PR #929 July 21, 2026 13:54 — with Render Destroyed

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Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

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🙏 Thank you for your contribution, @RohanExploit!

PR Details:

Quality Checklist:
Please ensure your PR meets the following criteria:

  • Code follows the project's style guidelines
  • Self-review of code completed
  • Code is commented where necessary
  • Documentation updated (if applicable)
  • No new warnings generated
  • Tests added/updated (if applicable)
  • All tests passing locally
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coderabbitai Bot commented Jul 21, 2026

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Review Change Stack

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: f6e81d6b-399c-486a-9a74-f6d1f79666fc

📥 Commits

Reviewing files that changed from the base of the PR and between 3a74e60 and 7a751c5.

📒 Files selected for processing (2)
  • .jules/bolt.md
  • backend/escalation_engine.py

📝 Walkthrough

Walkthrough

The escalation evaluation query now eagerly loads each grievance’s jurisdiction using SQLAlchemy joinedload. A dated .jules/bolt.md entry documents the N+1 query issue and recommends eager loading.

Changes

Escalation Query Loading

Layer / File(s) Summary
Eager-load grievance jurisdictions
backend/escalation_engine.py, .jules/bolt.md
The grievance evaluation query applies joinedload(Grievance.jurisdiction), and the new dated guidance documents eager loading for periodic jobs.

Estimated code review effort: 2 (Simple) | ~5 minutes

Possibly related PRs

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly summarizes the main change: fixing an N+1 query bottleneck in grievance evaluation.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
✨ Finishing Touches
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  • Commit unit tests in branch bolt-fix-n1-query-12810709853448038691

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No issues found across 2 files

Re-trigger cubic

@RohanExploit

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Closing as duplicate of #938, which covers the same N+1 fix in the escalation engine.

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Closing as duplicate of #938, which covers the same N+1 fix in the escalation engine.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.

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