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Migration Process

Here’s exactly what happens during your Cloud Migration. No surprises, no black boxes.

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Pre-Migration Phase

1

Discovery Call (30 min)

Before we start, we understand your app:
  • Table count and complexity
  • RLS policy overview
  • Auth configuration
  • Edge Functions
  • Custom requirements
  • Timeline expectations
Deliverable: Migration plan document
2

Access Setup

You provide secure access:
  • Lovable project details (read-only access)
  • Supabase credentials (from your new project)
  • Any special configurations
  • Emergency contact information
Security: All credentials encrypted, access logged, rotated post-migration
3

Backup Creation

We create safety nets:
  • Full database dump from Lovable
  • Auth user export
  • Configuration snapshots
These backups stay with you for 30 days post-migration

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Migration Execution

1

Schema Analysis (2-4 hours)

Deep dive into your database:
  1. Table inventory
    • List all 370 tables (or however many you have)
    • Document relationships
    • Identify circular dependencies
    • Map foreign key chains
  2. Constraint mapping
    • Primary keys
    • Foreign keys
    • Unique constraints
    • Check constraints
    • Exclusion constraints
  3. Index audit
    • All indexes documented
    • Usage patterns analyzed
    • Performance critical indexes flagged
  4. Dependency graph
    • Visual map of table relationships
    • Migration order determined
    • Risk points identified
Deliverable: Schema documentation with ER diagram
2

Test Migration (4-8 hours)

Practice run on subset:
  1. Create test tables (10-20 representative tables)
  2. Migrate test data (1000-5000 rows)
  3. Verify constraints (foreign keys, uniqueness)
  4. Test RLS policies (security validation)
  5. Check data integrity (row counts, checksums)
  6. Document issues (edge cases, problems)
Why test first? Catch problems before touching production data
3

Schema Migration (2-4 hours)

Recreate database structure:
-- Example of what we generate
CREATE TABLE public.profiles (
  id uuid DEFAULT uuid_generate_v4() PRIMARY KEY,
  user_id uuid REFERENCES auth.users(id) ON DELETE CASCADE,
  full_name text,
  avatar_url text,
  created_at timestamp with time zone DEFAULT now(),
  updated_at timestamp with time zone DEFAULT now()
);

CREATE INDEX idx_profiles_user_id ON public.profiles(user_id);
Order matters:
  1. Extensions and custom types
  2. Base tables (no foreign keys)
  3. Junction/link tables
  4. Tables with foreign keys (dependency order)
  5. Indexes
  6. Triggers
  7. Functions
Validation: Every table created, every constraint applied
4

Data Migration (4-12 hours)

The heavy lifting:Strategy by table size:
Table SizeMethodTime
< 10K rowsSingle INSERTMinutes
10K-100K rowsBatched INSERT (1000 row chunks)15-30 min
100K-1M rowsCOPY command + validation1-2 hours
> 1M rowsParallel streams + checkpointing2-4 hours
Process:
  1. Extract from Lovable (read-only, no downtime)
  2. Transform (data type conversions if needed)
  3. Load into your Supabase
  4. Verify (row counts, sample checks)
  5. Repeat for next batch
Handling issues:
  • Foreign key violations → Fix order or temporarily disable
  • Data type mismatches → Convert/transform
  • Timeout errors → Reduce batch size
  • Connection drops → Resume from checkpoint
5

RLS Policy Migration (2-4 hours)

Security model transfer:
-- Extract from Lovable
SELECT * FROM pg_policies WHERE schemaname = 'public';

-- Recreate in your project
CREATE POLICY "Users can view own profile" 
ON public.profiles FOR SELECT 
USING (auth.uid() = user_id);
Steps:
  1. Extract all policies from source
  2. Analyze policy logic
  3. Recreate in target (in dependency order)
  4. Enable RLS on all tables
  5. Test each policy with real queries
  6. Document any logic changes
Testing approach:
  • Sign in as test users
  • Attempt SELECT/INSERT/UPDATE/DELETE
  • Verify access is correctly restricted
  • Check edge cases (null users, deleted records)
6

Auth Migration (1-2 hours)

User account transfer:What transfers:
  • User IDs (UUIDs preserved)
  • Email addresses
  • Email confirmation status
  • User metadata (JSONB)
  • OAuth identities
  • Account creation dates
What doesn’t (technical limitation):
  • Passwords (hashed, can’t decrypt)
  • Active sessions
  • MFA settings
Process:
  1. Export user list from Lovable
  2. Import users to your Supabase
  3. Preserve OAuth identities
  4. Set up password reset flow
  5. Configure email templates
  6. Test sign-in with sample accounts
Communication plan:
  • Pre-migration email: “We’re upgrading our infrastructure”
  • Post-migration email: “Please reset your password”
  • FAQ page for common questions
7

Edge Functions & Triggers (1-2 hours)

Serverless logic migration:Edge Functions:
  1. Extract function code
  2. Resolve dependencies
  3. Update environment variables
  4. Deploy to your project
  5. Test execution
Database Triggers:
  1. Extract trigger definitions
  2. Migrate trigger functions
  3. Recreate triggers in dependency order
  4. Test trigger execution
  5. Verify business logic
Validation:
  • Functions execute without errors
  • Environment variables resolved
  • Secrets properly configured
  • Triggers fire correctly

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Post-Migration Phase

1

Validation & Testing (2-4 hours)

Comprehensive verification:Data integrity checks:
  • Row counts match for every table
  • Sample data verified (100+ random rows)
  • Foreign keys resolve correctly
  • No orphaned records
  • Constraints enforced
Security validation:
  • All RLS policies active
    • Policies tested with real users
  • No unauthorized access possible
Functionality testing:
  • User sign-up works
  • User sign-in works
  • OAuth providers connect
  • Realtime subscriptions work
  • Edge functions execute
Performance baseline:
  • Query performance measured
  • Index usage verified
  • Slow queries identified
2

Documentation Handoff (1 hour)

Complete migration package:You receive:
  • Migration Report: What was migrated, validation results
  • Schema Documentation: ER diagram, table descriptions
  • RLS Policy Summary: All security rules documented
  • Connection Details: All URLs and keys
  • Environment File: Ready-to-use .env.local
  • Testing Results: Validation logs
  • User Communication Templates: Email copy for your users
  • Rollback Instructions: How to revert if needed
3

Monitoring Period (48 hours)

We stay on standby:
  • Monitor error logs
  • Watch for performance issues
  • Provide hotfixes if needed

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Timeline Summary

PhaseDurationCumulative
Pre-migration1 dayDay 1
Schema analysis4 hoursDay 1-2
Test migration8 hoursDay 2
Full migration12-24 hoursDay 3-4
Validation4 hoursDay 4
Handoff1 hourDay 4
Monitoring48 hoursDays 4-6
Total: 4-6 days from kickoff to completion

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Communication During Migration

You’ll receive updates at each milestone:
  • ✅ Schema analysis complete
  • ✅ Test migration successful
  • 🔄 Full migration in progress (progress %)
  • ✅ Data migration complete
  • ✅ RLS policies migrated
  • ✅ Auth system ready
  • ✅ Validation passed
  • 📋 Documentation delivered