I also had this issue yesterday locally when updating to beta 60 but not because of payload but because of updated drizzle-orm and drizzle-kit dependencies.

These versions worked for me:

    "drizzle-kit": "0.20.18",
    "drizzle-orm": "0.30.10",

I need these explicit dependencies because of some customs scripts i wrote to check that the migrations added in the PR will apply cleanly against the target branch.

Also note that beta59 needs a newer Next.js version: https://github.com/payloadcms/payload-3.0-demo/blob/main/package.json#L32

I am running into the same issue, after trying to install the payload 3.0 beta.

npx create-payload-app@beta

1. Choosing the website theme, using postgres password on an empty database.
2. During installation, running into the same issue, as reported here: Npm projects receiving Cannot find module 'drizzle-orm/pg-core' #6752
3. Drizzle was not installed or mentioned in my package.json, using npm.
4. Trying to install Drizzle manually: npm i drizzle-orm
5. Ending up: with "drizzle-orm": "0.32.10",
6. Running into a new issue:
   `✓ Starting...
   ✓ Ready in 2.4s
   ○ Compiling /admin/[[...segments]] ...
   ✓ Compiled /admin/[[...segments]] in 3.1s (4086 modules)
   ⨯ node_modules/@payloadcms/db-postgres/dist/schema/createIndex.js (10:1) @ eval
   ⨯ TypeError: Cannot read properties of undefined (reading 'createdAt')
   at Array.reduce ()
   digest: "787331360"
   8 | } else {
   9 | columns = [

10 | table[name]
| ^
11 | ];
12 | }
13 | if (unique) return uniqueIndex(${tableName}_${columnName}_idx).on(columns[0], ...columns.slice(1));
GET /admin 500 in 5183ms
`

7. Using @yobottehg mention, of changing "drizzle-orm": "0.30.10" via npm install --legacy-peer-deps`
8. PostGres Connection does work now.