neon vercel integration does not create separate env vars for prod & preview & dev
Neon
from vercel connect a neon db to your vercel project say yes to preview & dev branches
two DB branches are created only one env var DATABASE_URL is created for all envs
npx vercel env list
Vercel CLI 50.1.6
Environment Variables found for vizz8info/neon-vercel-zapatos [273ms]
name value environments created POSTGRES_USER Encrypted Production, Preview, Development 20m ago NEON_PROJECT_ID Encrypted Production, Preview, Development 20m ago POSTGRES_PRISMA_URL Encrypted Production, Preview, Development 20m ago DATABASE_URL_UNPOOLED Encrypted Production, Preview, Development 20m ago DATABASE_URL Encrypted Production, Preview, Development 20m ago
i was expecting separate values for prod, preview & dev to point to the different db branches