Currently you cannot create indexes through the admin UI, but it's in my todo.

As an alternative, you can always create indexes through DB migrations or add the index directly via the `sqlite3` cli.

thanks for reply! is it schema free? or i need to define scheme via migrations?

Its not schema free (although you can create a json field and put whatever you want in it).

You can define schema via migrations or through the admin UI (see https://pocketbase.io/docs/manage-collections/).