# Performance Indexes Documentation Navigation

Quick guide to find the right documentation for your needs.

## I Want To...

### Just Deploy It
**Start here**: `/MIGRATION_045_README.md`
- Overview of what this migration does
- Step-by-step deployment instructions
- Verification procedures
- Rollback instructions if needed
- Estimated time: 5 minutes reading + 20 seconds to deploy

### Understand the Indexes
**Read**: `/docs/INDEX_QUICK_REFERENCE.md`
- What each index does
- Which queries use which indexes
- Common mistakes to avoid
- Performance expectations
- Estimated time: 10 minutes

### Learn the Technical Details
**Read**: `/docs/PERFORMANCE_INDEXES_GUIDE.md`
- Index strategy and philosophy
- Query patterns covered
- Maintenance procedures
- Troubleshooting
- Monitoring
- Estimated time: 30 minutes

### See Visual Diagrams
**Read**: `/docs/INDEX_ARCHITECTURE.md`
- Database schema with indexes marked
- Index type distribution
- Performance before/after flows
- Storage analysis
- Monitoring dashboards
- Estimated time: 20 minutes

### Study Real Examples
**Read**: `/docs/INDEX_EXAMPLES.md`
- 8 real-world query examples
- Before/after performance comparison
- Query plans (EXPLAIN ANALYZE)
- Testing instructions
- Estimated time: 20 minutes

### Test the Indexes
**Run**: `/tests/sql/tests/sql/test_performance_indexes.sql`
- Verify all 23 indexes exist
- Check index types and columns
- Monitor usage statistics
- Test query performance
- Estimated time: 10 minutes

---

## Document Map

```
MIGRATION_045_README.md (START HERE)
│
├─ Quick reference
│  └─ INDEX_QUICK_REFERENCE.md
│
├─ Technical deep dive
│  ├─ PERFORMANCE_INDEXES_GUIDE.md
│  ├─ INDEX_ARCHITECTURE.md
│  └─ INDEX_EXAMPLES.md
│
└─ Testing
   └─ /tests/sql/tests/sql/test_performance_indexes.sql
```

---

## By Role

### Database Administrator
1. Read: `/MIGRATION_045_README.md`
2. Read: `/docs/PERFORMANCE_INDEXES_GUIDE.md` (Maintenance section)
3. Run: `/tests/sql/tests/sql/test_performance_indexes.sql`
4. Monitor: Use SQL from `/docs/INDEX_QUICK_REFERENCE.md`

### Backend Developer
1. Scan: `/MIGRATION_045_README.md`
2. Reference: `/docs/INDEX_QUICK_REFERENCE.md` (most used)
3. Study: `/docs/INDEX_EXAMPLES.md` (learn from examples)
4. Bookmark: Query list in `/docs/INDEX_QUICK_REFERENCE.md`

### DevOps/Deployment
1. Read: `/MIGRATION_045_README.md` (deployment section)
2. Review: Rollback procedures
3. Monitor: `/docs/PERFORMANCE_INDEXES_GUIDE.md` (monitoring)
4. Check: Database after deployment

### Performance Engineer
1. Read: `/docs/INDEX_ARCHITECTURE.md` (architecture)
2. Study: `/docs/INDEX_EXAMPLES.md` (metrics)
3. Use: `/tests/sql/tests/sql/test_performance_indexes.sql` (benchmarking)
4. Reference: `/docs/PERFORMANCE_INDEXES_GUIDE.md` (troubleshooting)

### New Team Member
1. Start: `/MIGRATION_045_README.md` (overview)
2. Learn: `/docs/INDEX_QUICK_REFERENCE.md` (quick facts)
3. Deep dive: `/docs/INDEX_ARCHITECTURE.md` (visuals)
4. Practice: `/docs/INDEX_EXAMPLES.md` (examples)

---

## FAQ Answers By Document

### Where do I find information about...

**Deploying the migration?**
→ `/MIGRATION_045_README.md` (How to Apply section)

**What index to use for my query?**
→ `/docs/INDEX_QUICK_REFERENCE.md` (Query-to-index mapping)

**Why we chose these indexes?**
→ `/docs/PERFORMANCE_INDEXES_GUIDE.md` (Index Strategy section)

**How much faster will my queries be?**
→ `/docs/INDEX_EXAMPLES.md` (Performance Comparison Table)

**How to monitor if indexes are working?**
→ `/docs/PERFORMANCE_INDEXES_GUIDE.md` (Monitoring Index Usage)

**What if I need to rollback?**
→ `/MIGRATION_045_README.md` (How to Rollback section)

**Is there a visual diagram?**
→ `/docs/INDEX_ARCHITECTURE.md` (entire document)

**Real before/after examples?**
→ `/docs/INDEX_EXAMPLES.md` (8 detailed examples)

**Common mistakes?**
→ `/docs/INDEX_QUICK_REFERENCE.md` (Common Mistakes section)

**Testing procedures?**
→ `/tests/sql/tests/sql/test_performance_indexes.sql` (SQL script)
OR `/MIGRATION_045_README.md` (How to Test section)

**Storage impact?**
→ `/docs/INDEX_ARCHITECTURE.md` (Storage Footprint)

---

## Reading Time by Document

| Document | Time | Best For |
|----------|------|----------|
| MIGRATION_045_README.md | 5-10 min | Decision makers, getting started |
| INDEX_QUICK_REFERENCE.md | 5-10 min | Daily reference, developers |
| PERFORMANCE_INDEXES_GUIDE.md | 20-30 min | Technical details, DBAs |
| INDEX_ARCHITECTURE.md | 15-20 min | Visual learners, architects |
| INDEX_EXAMPLES.md | 15-20 min | Understanding impact, examples |
| tests/sql/test_performance_indexes.sql | 10 min | Hands-on verification |

**Total time to understand everything: 60-90 minutes**

---

## Quick Links by Topic

### Deployment
- `/MIGRATION_045_README.md` - Deployment section
- `/MIGRATION_045_README.md` - How to Apply
- `/MIGRATION_045_README.md` - How to Rollback

### Performance
- `/docs/INDEX_EXAMPLES.md` - Real examples with metrics
- `/docs/INDEX_ARCHITECTURE.md` - Performance paths
- `/docs/PERFORMANCE_INDEXES_GUIDE.md` - Performance expectations

### Maintenance
- `/docs/PERFORMANCE_INDEXES_GUIDE.md` - Index Maintenance section
- `/docs/PERFORMANCE_INDEXES_GUIDE.md` - Monitoring Index Usage
- `/docs/INDEX_QUICK_REFERENCE.md` - Troubleshooting

### Testing
- `/tests/sql/tests/sql/test_performance_indexes.sql` - Full test suite
- `/docs/INDEX_EXAMPLES.md` - Testing These Examples
- `/MIGRATION_045_README.md` - How to Test

### Reference
- `/docs/INDEX_QUICK_REFERENCE.md` - Index listing by table
- `/docs/INDEX_QUICK_REFERENCE.md` - Query-to-index mapping
- `/docs/INDEX_ARCHITECTURE.md` - Database schema diagram

### Problem Solving
- `/docs/INDEX_QUICK_REFERENCE.md` - Common Mistakes
- `/docs/PERFORMANCE_INDEXES_GUIDE.md` - Troubleshooting
- `/MIGRATION_045_README.md` - Troubleshooting

---

## How to Use This Navigation

1. **Find your situation** in the "I Want To..." section above
2. **Read the recommended document**
3. **Reference other docs** as needed using the FAQ section
4. **Use SQL script** for testing

Each document is self-contained but cross-references others when needed.

---

## File Organization

```
Trace Project
├─ alembic/
│  └─ versions/
│     └─ 045_add_performance_indexes.py    ← Migration
│
├─ docs/
│  ├─ INDEX_NAVIGATION.md                 ← You are here
│  ├─ PERFORMANCE_INDEXES_GUIDE.md         ← Full guide
│  ├─ INDEX_QUICK_REFERENCE.md             ← Quick lookup
│  ├─ INDEX_ARCHITECTURE.md                ← Diagrams
│  └─ INDEX_EXAMPLES.md                    ← Examples
│
├─ tests/
│  └─ tests/sql/test_performance_indexes.sql        ← Test suite
│
└─ MIGRATION_045_README.md                ← Start here
```

---

## Starting Points by Experience Level

### Beginner
1. Read: MIGRATION_045_README.md
2. Look at: INDEX_ARCHITECTURE.md (diagrams)
3. Reference: INDEX_QUICK_REFERENCE.md (quick facts)

### Intermediate
1. Skim: MIGRATION_045_README.md
2. Read: PERFORMANCE_INDEXES_GUIDE.md
3. Study: INDEX_EXAMPLES.md

### Advanced
1. Read: PERFORMANCE_INDEXES_GUIDE.md (skip intro)
2. Focus: INDEX_ARCHITECTURE.md (technical section)
3. Test: Run tests/sql/test_performance_indexes.sql
4. Monitor: Use monitoring queries from PERFORMANCE_INDEXES_GUIDE.md

---

## Next Steps

1. **Choose your document** based on your role or question
2. **Read at your own pace** (estimates provided)
3. **Reference as needed** when you have questions
4. **Test with SQL script** to verify understanding
5. **Deploy with confidence** using MIGRATION_045_README.md

**Questions?** Check the FAQ section or read the relevant document.

---

Last Updated: 2026-01-29
Status: Complete and production-ready
