fix(pagination): resolve PR review issues - timezone and performance#441
fix(pagination): resolve PR review issues - timezone and performance#441
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- Fix to_char timezone issue in cursor pagination (user.ts:189, usage-logs.ts:187) - Add AT TIME ZONE 'UTC' to ensure consistent UTC output - Prevents cursor mismatch in non-UTC deployments - Optimize filter dropdown lookup performance (usage-logs-filters.tsx) - Add userMap/providerMap useMemo for O(1) name lookup - Replace Array.find() with Map.get() for 100+ item scenarios Addresses PR #436 review feedback from Codex AI Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Summary of ChangesHello @ding113, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request addresses key feedback from a previous review, focusing on two main areas: ensuring consistent timezone handling for cursor-based pagination to prevent data discrepancies, and significantly enhancing the performance of filter dropdowns within the application by optimizing data lookup mechanisms. These changes aim to improve both the reliability and responsiveness of the system. Highlights
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🧪 测试结果
总体结果: ✅ 所有测试通过 |
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Code Review
This pull request effectively addresses the two main goals outlined in the description: fixing a critical timezone issue in cursor pagination and optimizing the performance of filter dropdowns. The addition of AT TIME ZONE 'UTC' to the SQL queries is a correct and robust solution for ensuring consistent cursor values across different server environments. The use of useMemo with Map to replace Array.find is a great performance enhancement for the UI, especially with large datasets. I've added a couple of suggestions to improve maintainability by centralizing the duplicated timestamp format string into a shared constant. Overall, these are solid improvements to the codebase.
| id: messageRequest.id, | ||
| createdAt: messageRequest.createdAt, | ||
| createdAtRaw: sql<string>`to_char(${messageRequest.createdAt}, 'YYYY-MM-DD"T"HH24:MI:SS.US"Z"')`, | ||
| createdAtRaw: sql<string>`to_char(${messageRequest.createdAt} AT TIME ZONE 'UTC', 'YYYY-MM-DD"T"HH24:MI:SS.US"Z"')`, |
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To improve maintainability and avoid magic strings, consider extracting the timestamp format YYYY-MM-DD"T"HH24:MI:SS.US"Z" into a shared constant. This same format string is also used in src/repository/user.ts. A shared constant would ensure consistency and make future updates easier.
| tags: users.tags, | ||
| createdAt: users.createdAt, | ||
| createdAtRaw: sql<string>`to_char(${users.createdAt}, 'YYYY-MM-DD"T"HH24:MI:SS.US"Z"')`, | ||
| createdAtRaw: sql<string>`to_char(${users.createdAt} AT TIME ZONE 'UTC', 'YYYY-MM-DD"T"HH24:MI:SS.US"Z"')`, |
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This timestamp format string YYYY-MM-DD"T"HH24:MI:SS.US"Z" is also used in src/repository/usage-logs.ts. To avoid duplication and improve maintainability, it would be best to define this as a shared constant in a single location and reference it from both files.
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Code Review Summary
No significant issues identified in this PR.
PR Size: XS
- Lines changed: 17
- Files changed: 3
Review Coverage
- Logic and correctness - Clean
- Security (OWASP Top 10) - Clean
- Error handling - Clean
- Type safety - Clean
- Documentation accuracy - Clean
- Test coverage - Adequate
- Code clarity - Good
Automated review by Codex AI
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- Identified PR
#441(fix(pagination): resolve PR review issues - timezone and performance). - PR size computed as XS (17 lines changed, 3 files) and applied label
size/XS. - Completed a diff-scoped review across the 3 changed files; no issues met the ≥80 confidence reporting threshold, so no inline comments were posted.
- Submitted the “No significant issues” summary review via
gh pr review --comment.
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Summary
Addresses PR #436 review feedback with critical fixes for timezone handling and performance optimization.
Problem
Related Issues:
PR #436 introduced a critical bug in the cursor pagination:
to_char(timestamptz, ...)formats timestamps using the database session timezone but appendsZ(UTC) suffix. In non-UTC deployments, this causes cursor mismatch and pagination can skip/duplicate rows.Additionally, the filter dropdown lookup was using
Array.find()on every render, which is O(n) and inefficient for large user/provider lists.Solution
Critical: Timezone Fix
Added
AT TIME ZONE 'UTC'toto_char()calls to ensure timestamps are always formatted in UTC before appending theZsuffix:src/repository/user.ts:189src/repository/usage-logs.ts:187Medium: Performance Optimization
Replaced O(n)
Array.find()lookups with O(1)Map.get()using memoized Maps:userMapandproviderMapwithuseMemoChanges
Core Changes
src/repository/user.ts:189AT TIME ZONE 'UTC'to cursor timestampsrc/repository/usage-logs.ts:187AT TIME ZONE 'UTC'to cursor timestampsrc/app/[locale]/dashboard/logs/_components/usage-logs-filters.tsxTesting
Automated Tests
bun run typecheckpassedbun run lintpassedManual Testing
Checklist
Description enhanced by Claude AI