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PR #8 Verification — Issue #7 (DB Indexes)

Scope Reviewed

  • Repo: ~/heavaa/dev/popilot
  • PR branch: fix/issue-7-indexes
  • Compared against: main
  • Expected change: single new file scaffold/pm-api/sql/007-indexes.sql

1) Diff stat

git diff main...fix/issue-7-indexes --stat

Result:

  • scaffold/pm-api/sql/007-indexes.sql | 27 +++++++++++++++++++++++++++
  • 1 file changed, 27 insertions(+)

2) CREATE INDEX IF NOT EXISTS usage

✅ Pass. All index statements use CREATE INDEX IF NOT EXISTS.

3) Naming convention idx_{table}_{column}

✅ Pass. All index names follow the expected pattern:

  • idx_pm_stories_sprint
  • idx_pm_stories_epic_id
  • idx_pm_stories_status
  • idx_pm_stories_assignee
  • idx_pm_tasks_story_id
  • idx_pm_tasks_status
  • idx_pm_tasks_assignee
  • idx_pm_epics_status
  • idx_meetings_date
  • idx_meetings_meeting_date
  • idx_members_display_name
  • idx_nav_sprints_status

4) Required table/column coverage

✅ Pass. All requested columns are covered:

  • pm_stories: sprint, epic_id, status, assignee
  • pm_tasks: story_id, status, assignee
  • pm_epics: status
  • meetings: date, meeting_date
  • members: display_name
  • nav_sprints: status

5) TypeScript file modifications

✅ Pass. No TypeScript files were modified.

6) Potential issues (at least 3)

  1. Migration locking risk on large tables (non-blocking but important):
    • Uses standard CREATE INDEX (not CONCURRENTLY). On large production tables, this may take stronger locks and impact write availability during migration.
  2. No composite indexes for likely multi-column filters (non-blocking):
    • If frequent queries combine filters (e.g., pm_tasks(story_id, status) or pm_stories(epic_id, status)), single-column indexes may not provide optimal plans.
  3. Write overhead increase from many single-column indexes (non-blocking):
    • 12 new indexes can increase insert/update cost and storage usage. Worth validating with query patterns and EXPLAIN ANALYZE before/after.
  4. Potential redundancy risk if schema already has overlapping indexes (non-blocking):
    • IF NOT EXISTS prevents duplicate-name creation but does not prevent semantically duplicate indexes under different names.

7) Verdict

✅ APPROVE

All checklist requirements are satisfied, and the migration is idempotent and convention-compliant. Recommend follow-up performance validation (query plans + migration window strategy) in staging/production rollout notes.