Database file generated doesn't output correct type for TIMESTAMP(0)

[anshul-kai]

Bug report

• I confirm this is a bug with Supabase, not with my own application.
• I confirm I have searched the Docs, GitHub Discussions, and Discord.

Describe the bug

Database file generated using the dashboard or the command line doesn't generate correct data types for TIMESTAMP(0). Should be a Date type and so should the underlying data insteadof string.

To Reproduce

Use either approach below to generate database files for a profiles table as described below.

CREATE TABLE "profiles" (
  "id" UUID PRIMARY KEY REFERENCES auth.users ON DELETE CASCADE,
  "email" TEXT UNIQUE NOT NULL,
  "firstName" TEXT,
  "lastName" TEXT,
  "createdAt" TIMESTAMP(0) DEFAULT CURRENT_TIMESTAMP,
  "updatedAt" TIMESTAMP(0)
);

Approach 1

https://supabase.com/dashboard/project/_/api?page=tables-intro

Approach 2

   npx supabase login
   npx supabase init
   npx supabase gen types --lang=typescript --project-id "$PROJECT_REF" --schema public > database.types.ts

File Generated

export type Database = {
  public: {
    Tables: {
      profiles: {
        Row: {
          createdAt: string | null
          email: string
          firstName: string | null
          id: string
          lastName: string | null
          updatedAt: string | null
        }
        Insert: {
          createdAt?: string | null
          email: string
          firstName?: string | null
          id: string
          lastName?: string | null
          updatedAt?: string | null
        }
        Update: {
          createdAt?: string | null
          email?: string
          firstName?: string | null
          id?: string
          lastName?: string | null
          updatedAt?: string | null
        }
        Relationships: [
          {
            foreignKeyName: "profiles_id_fkey"
            columns: ["id"]
            isOneToOne: true
            referencedRelation: "users"
            referencedColumns: ["id"]
          },
        ]
      }
    }
  }
}

Expected behavior

createdAt and updatedAt should be of type Date instead of string

[jens-ghc]

I'm running into the same issue. Right now I'm manually editing the generated files to replace string with Date but that is only a short-term solution. Ideally there should be a way to define how the timestamp type (and possibly other types) are exposed in the generated types. Is that something that is on the roadmap?

[soedirgo]

Closing in favor of supabase/postgrest-js#572