Cursor
database
Database Migration Rollback Fails After Cursor Changes
After Cursor generated new database migration files, attempting to roll back to a previous version fails with syntax errors or constraint violations. The database is left in an inconsistent state.
The down migration (rollback) may be malformed or incompatible with the current schema.
Error Messages You Might See
ERROR: relation "table_name" does not exist
ERROR: constraint "fk_name" does not exist
ERROR: column "col_name" does not exist
Migration failed to rollback
Common Causes
- Down migration uses incorrect column names that don't match up migration
- Foreign key constraints prevent dropping columns in rollback
- Rollback migration missing proper error handling or transaction wrapping
- Index names or constraint names don't match between up and down
- Rollback attempts to drop non-existent columns or tables
How to Fix It
Verify down migrations are exact reverses of up migrations. Wrap in transactions: BEGIN; ... ROLLBACK;. Check column/index names match. Test rollback on development database first. Use DROP IF EXISTS for safety.
Real developers can help you.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
What I bring to AI-built apps:
- I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0
- I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture)
- I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting
- I integrate external services: payment providers, email systems, partner APIs, SSO/auth
Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code.
Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Nam Tran
10 years as fullstack developer
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
AUXLE
I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How do I manually fix a failed migration?
Connect to DB and manually run the down migration SQL. Update migration table to mark migration as reverted.
Can I edit a migration after it's run?
No. Create a new migration to fix the issue. Never edit run migrations.