Type Alias ColumnNames<DB, TableName>

ColumnNames: "public" extends keyof DB
    ? DB["public"] extends { Tables: infer T }
        ? TableName extends keyof T
            ? T[TableName] extends { Row: infer R } ? keyof R & string : never
            : never
        : never
    : never

Extract column names for a specific table Uses the 'Row' type which represents the actual database columns Example: for 'notes' → 'id' | 'user_id' | 'title' | 'created_at'