writing-migrations

You can generate idempotent Supabase SQL migrations from code diffs by translating session branch changes into incremental database schema changes, ensuring guarded statements and preventing redundant deployments of already-applied schema updates.

Preventing schema drift during Supabase database changes requires calculating incremental deltas against existing migrations, emitting only the schema changes not already present to avoid deployment failures and manual SQL authoring errors.

Supabase view recreations fail with ordinal shift errors when column ordering changes are not handled correctly, requiring automated view consistency enforcement to recreate affected views and maintain correct column ordering.

Yes, you can automatically add Row Level Security policies for new tables by generating guarded migration statements that align application code changes with the required RLS policies during deployment.

You avoid deploying redundant SQL migrations by performing incremental delta calculation against existing migration files, ensuring only schema changes not already present in the database are emitted and applied.

Yes, this automated migration approach works for adding custom fields by reading the code diff for your new entity field and generating the correct SQL migration to add the column and update related summary views.