fix(react-db): let setWindow control limit/offset in useLiveInfiniteQuery

[v-anton]

🎯 Changes

useLiveInfiniteQuery baked .limit(pageSize + 1).offset(0) into the initial query builder. This capped results even after setWindow() tried to expand the window for subsequent pages, making pagination beyond page 1 return no additional data.

The fix removes the hardcoded limit/offset from the initial query and lets setWindow() (called in the useEffect below) be the sole authority on the query window.

✅ Checklist

• I have tested this code locally with pnpm test:pr.
• I have followed the steps in the Contributing guide.

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

Summary by CodeRabbit

Bug Fixes

• Fixed infinite query pagination to properly manage dynamic pagination windows across multiple pages without hardcoded initial limits, ensuring correct data retrieval for all pages.

[coderabbitai]

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: 8ad95452-7b34-4933-ade7-48b0a9168979

📥 Commits

Reviewing files that changed from the base of the PR and between be656be and 4954cc3.

📒 Files selected for processing (3)

• .changeset/fix-infinite-query-limit-offset.md
• packages/react-db/src/useLiveInfiniteQuery.ts
• packages/react-db/tests/useLiveInfiniteQuery.test.tsx

---

📝 Walkthrough

Walkthrough

This PR removes hardcoded limit/offset constraints from useLiveInfiniteQuery's initial query setup. Instead of baking a pageSize + 1 peek-ahead window into the query, the hook now delegates all pagination window control to utils.setWindow(). The test suite is comprehensively updated to validate observable outcomes (hasNextPage, data length, page counts) rather than internal request shapes, and a new regression test ensures correct multi-page behavior with the query-function pattern.

Changes

useLiveInfiniteQuery Window Control Fix

Layer / File(s)	Summary
Core hook implementation and fix documentation .changeset/fix-infinite-query-limit-offset.md, packages/react-db/src/useLiveInfiniteQuery.ts	The hook removes the initial .limit(pageSize + 1) / .offset(0) window, passing collection or query function directly to useLiveQuery without peek-ahead constraints, and documents the patch release.
Test suite updates and regression validation packages/react-db/tests/useLiveInfiniteQuery.test.tsx	Imports are consolidated; peek-ahead, multi-page, and async tests are refactored to assert external outcomes (page count, hasNextPage, data length) instead of internal call counts and transition flags; mock loadSubset is rewritten to handle cursor pagination with filtering and sorting; a regression test validates correct item IDs and hasNextPage across pages 2–3 in query-function pattern usage.

Sequence Diagram

sequenceDiagram
  participant UserComponent
  participant useLiveInfiniteQuery
  participant useLiveQuery
  participant utils.setWindow
  participant loadSubset
  
  rect rgba(100, 150, 200, 0.5)
    Note over useLiveInfiniteQuery: OLD: Hardcoded limit/offset
    UserComponent->>useLiveInfiniteQuery: invoke hook
    useLiveInfiniteQuery->>useLiveQuery: queryFn with .limit(pageSize+1).offset(0)
    useLiveQuery->>loadSubset: fetch(limit, offset)
  end
  
  rect rgba(100, 200, 150, 0.5)
    Note over useLiveInfiniteQuery: NEW: Dynamic window control
    UserComponent->>useLiveInfiniteQuery: invoke hook
    useLiveInfiniteQuery->>useLiveQuery: queryFn without initial window
    useLiveInfiniteQuery->>utils.setWindow: setWindow(limit, offset)
    utils.setWindow->>loadSubset: fetch with window constraints
  end

Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

Poem

🐰 The window now dances with grace,
No hardcoded bounds in this place,
setWindow takes flight,
Each page feels just right,
Infinite queries embrace their own pace. ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: removing hardcoded limit/offset constraints and allowing setWindow() to control pagination in useLiveInfiniteQuery.
Description check	✅ Passed	The description fully covers the issue, solution, and includes all required checklist items and release impact sections from the template.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}