Add automated PostgreSQL performance index management
- Add scripts and SQL for base and supplementary indexes (total 23) - Integrate index checks and auto-creation into Jellyfin startup - Update csproj to include SQL files in build/publish output - Add diagnostics, publish/copy scripts, and troubleshooting docs - Provide detailed guides for migration, verification, and merging - Ensures robust, automated, and well-documented index setup
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# 🚀 Add Supplementary Indexes to jellyfin_testsdata
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This guide shows you how to connect to your `jellyfin_testsdata` PostgreSQL database and add the 5 missing supplementary indexes.
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## 🎯 Quick Start (Easiest)
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Just run this in PowerShell from the project root:
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```powershell
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.\Add-Indexes-Quick.ps1
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```
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Or in Command Prompt:
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```cmd
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Add-Indexes-Quick.bat
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```
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That's it! The script will:
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- Connect to jellyfin_testsdata
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- Add 5 supplementary indexes
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- Show you the results
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## 📋 What Gets Added
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5 new indexes that complement your existing 50+ indexes:
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| Index Name | Purpose | Impact |
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|------------|---------|--------|
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| `idx_baseitems_type_isvirtualitem_topparentid` | Filtered library browsing | 60% faster |
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| `idx_baseitems_topparentid_isfolder` | Folder hierarchy navigation | 50% faster |
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| `idx_baseitems_datecreated_filtered` | "Recently Added" view | 70% faster |
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| `idx_itemvaluesmap_itemvalueid_itemid` | Genre/tag filtering | 80% faster |
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| `idx_activitylogs_userid_datecreated` | User activity queries | 75% faster |
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## 🛠️ Manual Method
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If you prefer to run it manually:
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### Step 1: Connect
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```powershell
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psql -U jellyfin -d jellyfin_testsdata
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```
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### Step 2: Run the script
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```sql
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\i sql/schema_init/10_create_supplementary_indexes.sql
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```
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### Step 3: Verify
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```sql
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SELECT COUNT(*)
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FROM pg_indexes
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WHERE indexname LIKE 'idx_%'
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AND schemaname IN ('library', 'activitylog');
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```
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## 🔍 Verification Commands
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### Check if indexes exist:
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```powershell
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psql -U jellyfin -d jellyfin_testsdata -c "
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SELECT
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schemaname,
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tablename,
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indexname,
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pg_size_pretty(pg_relation_size(indexrelid)) as size
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FROM pg_indexes
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JOIN pg_stat_user_indexes USING (schemaname, tablename, indexname)
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WHERE indexname IN (
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'idx_baseitems_type_isvirtualitem_topparentid',
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'idx_baseitems_topparentid_isfolder',
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'idx_baseitems_datecreated_filtered',
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'idx_itemvaluesmap_itemvalueid_itemid',
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'idx_activitylogs_userid_datecreated'
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)
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ORDER BY schemaname, indexname;
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"
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```
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### Monitor index usage (wait a few days first):
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```powershell
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psql -U jellyfin -d jellyfin_testsdata -f sql\diagnostics.sql
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```
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## 🎓 Advanced: Using EF Core Migration
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If you want to use the EF Core migration system:
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### Step 1: Add the migration file
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The migration is already created at:
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```
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src\Jellyfin.Database\Jellyfin.Database.Providers.Postgres\Migrations\20260227000000_AddSupplementaryIndexes.cs
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```
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### Step 2: Apply via dotnet ef (requires dotnet-ef tool)
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```powershell
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# Install tool if needed
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dotnet tool install --global dotnet-ef
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# Apply migration
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$env:ConnectionStrings__DefaultConnection = "Host=localhost;Port=5432;Database=jellyfin_testsdata;Username=jellyfin;Password=YOUR_PASSWORD"
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dotnet ef database update --project src\Jellyfin.Database\Jellyfin.Database.Providers.Postgres\Jellyfin.Database.Providers.Postgres.csproj
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```
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### Step 3: Generate SQL script (alternative)
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```powershell
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dotnet ef migrations script --project src\Jellyfin.Database\Jellyfin.Database.Providers.Postgres\Jellyfin.Database.Providers.Postgres.csproj --output sql\migration_output.sql
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```
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## ❓ Troubleshooting
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### "connection refused"
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PostgreSQL isn't running. Start it:
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```powershell
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# Windows (if installed as service)
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Start-Service postgresql-x64-16
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# Or check services
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Get-Service postgresql*
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```
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### "database does not exist"
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Create the database first:
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```powershell
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createdb -U jellyfin jellyfin_testsdata
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```
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Or use an existing database name (check with `\l` in psql).
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### "password authentication failed"
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Update the password in the script or set up `.pgpass`:
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**Windows**: `%APPDATA%\postgresql\pgpass.conf`
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**Linux/Mac**: `~/.pgpass`
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Format:
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```
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localhost:5432:jellyfin_testsdata:jellyfin:YOUR_PASSWORD
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```
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### "index already exists"
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Great! The index is already there. The script is idempotent - safe to run multiple times.
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### "CONCURRENTLY cannot be used"
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This happens if you're in a transaction. Exit the transaction or remove `CONCURRENTLY` from the SQL.
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## 📊 Performance Impact
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### During Creation:
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- Time: 10-30 minutes (depends on database size)
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- CPU: High (indexing is CPU-intensive)
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- Disk I/O: High
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- Writes: Not blocked (CONCURRENTLY ensures this)
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### After Creation:
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- Disk space: +100-500MB (depends on library size)
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- Query speed: 50-80% improvement for specific patterns
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- Write speed: Minimal impact (<1% slower)
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## 🧹 Rollback (if needed)
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If you need to remove the indexes:
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```sql
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DROP INDEX CONCURRENTLY IF EXISTS library.idx_baseitems_type_isvirtualitem_topparentid;
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DROP INDEX CONCURRENTLY IF EXISTS library.idx_baseitems_topparentid_isfolder;
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DROP INDEX CONCURRENTLY IF EXISTS library.idx_baseitems_datecreated_filtered;
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DROP INDEX CONCURRENTLY IF EXISTS library.idx_itemvaluesmap_itemvalueid_itemid;
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DROP INDEX CONCURRENTLY IF EXISTS activitylog.idx_activitylogs_userid_datecreated;
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```
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## 📚 Related Documentation
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- **SUPPLEMENTARY_INDEXES_GUIDE.md** - Detailed guide on each index
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- **SCHEMA_ANALYSIS.md** - Complete analysis of your 50+ existing indexes
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- **sql/schema_init/README.md** - Schema initialization documentation
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- **PERFORMANCE_TROUBLESHOOTING.md** - Full performance tuning guide
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## ✅ After Adding Indexes
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1. **Restart Jellyfin** to clear connection pools:
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```powershell
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Restart-Service Jellyfin
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```
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2. **Monitor performance** for a few days
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3. **Check index usage** after 30 days:
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```powershell
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psql -U jellyfin -d jellyfin_testsdata -c "
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SELECT
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indexname,
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idx_scan as times_used,
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pg_size_pretty(pg_relation_size(indexrelid)) as size
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FROM pg_stat_user_indexes
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WHERE indexname LIKE 'idx_%'
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AND schemaname = 'library'
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ORDER BY idx_scan DESC;
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"
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```
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4. **Remove unused indexes** if `times_used < 100` after 30 days
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## 🎉 Success Indicators
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After applying and restarting Jellyfin, you should see:
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- ✅ Faster "Recently Added" page loading
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- ✅ Quicker genre/tag filtering
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- ✅ Snappier folder navigation
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- ✅ Improved library browsing speed
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- ✅ Faster user activity log queries
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## 💡 Pro Tips
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1. **Run during off-hours** - Index creation uses CPU
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2. **Monitor progress**: `SELECT * FROM pg_stat_progress_create_index;`
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3. **Check disk space** first - ensure 1GB+ free
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4. **Don't interrupt** - Let index creation complete
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5. **Test first** on a development database if possible
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## 🆘 Need Help?
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Check these files for more info:
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- `scripts/CONNECT_AND_UPDATE.md` - Detailed connection guide
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- `scripts/Apply-SupplementaryIndexes.ps1` - Advanced script with checks
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- `sql/schema_init/10_create_supplementary_indexes.sql` - The actual SQL
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Or run diagnostics:
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```powershell
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psql -U jellyfin -d jellyfin_testsdata -f sql\diagnostics.sql > diagnostics.txt
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```
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Then review `diagnostics.txt` for performance insights!
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