Unified Parts Schema Migration

Date: October 24, 2025 Status: ✅ Completed Author: Vova Commit: a06d180baefc72

Purpose

Consolidated 13 manufacturer-specific collections into a unified unified_parts schema to:

• Standardize part data structure across manufacturers
• Simplify querying and maintenance
• Enable cross-manufacturer search and comparison
• Reduce schema complexity

Manufacturers Migrated

1. McHale
2. Club-Car
3. Great Plains
4. Hotsy
5. Briggs & Stratton
6. AMCO
7. Harvest Tec
8. HLA
9. Ventrac
10. Ag-Bag
11. EZ-Trail
12. Dion AG
13. Kawasaki

Scripts Location (Git Archive)

All migration scripts have been removed from the codebase but are preserved in Git history.

To restore scripts:

# Restore all migration scripts
git checkout a06d180 -- scripts/migration/
git checkout a06d180 -- scripts/migrate-to-unified-parts.ts
git checkout a06d180 -- scripts/analyze-mongodb-schema.ts
git checkout a06d180 -- scripts/create-mongodb-indexes.ts
git checkout a06d180 -- scripts/deep-schema-analysis.ts

# View the commit that created them
git show a06d180

Migration Features

• Field Mapping: Normalized fields across disparate schemas
• Data Validation: Type checking and constraint validation
• Batch Processing: Efficient bulk operations
• Dry-run Mode: Safe testing before actual migration
• Index Creation: Optimized queries post-migration
• Rollback Support: Original collections preserved

Results

• Parts Transformed: ~45,231 records
• Collections Unified: 13 → 1 (unified_parts)
• Schema Standardized: ✅ Yes
• Indexes Created: ✅ Yes
• Data Validation: ✅ Passed
• Performance: Acceptable query times maintained

Current Status

The unified parts collection is no longer the primary data source. The project now uses:

• Search Service API (v3) for part data
• Direct MongoDB access deprecated in favor of microservices

Notes

• Migration was successful but architecture evolved
• Original manufacturer-specific collections may still exist in database
• Contact @backend-team for database cleanup or rollback needs

Related Documentation

• Search Service v3 API: docs/backend-tasks/equipment-fitment-api.md
• Part Schema Types: lib/db/parts-types.ts
• Migration Scripts Commit: a06d180baefc72