[Introspection] Remove @default from scalar lists

[janpio]

• Error parsing attribute "@default": Cannot set a default value on list field.
• default-on-list
• @default on a list type field (which is not supported)

---

Postgres, basic-blog:

Error: Schema parsing error: Error parsing attribute "@default": Cannot set a default value on list field..
  -->  schema.prisma:25
   | 
24 |   id      Int      @id @sequence(name: "posts_id_seq", allocationSize: 1, initialValue: 1)
25 |   tags    String[] @default("{}[]") @scalarList(strategy: EMBEDDED)
26 |   title   String
   | 

[sorenbs]

Decision

We can release Photon without support for a default value on scalar lists. We should simply omit @default(...) from the printed PSL.

Later, we should decide on a serialisation format for providing a scalar list default value in the PSL

[janpio]

Long Term Solution

Decide on a serialisation format for providing a scalar list default value in the PSL

Guardrail

No support for a default value on scalar lists, simply omit @default(...) from the printed PSL.

Decision

We go with the guardrail for now.

[BrenoMazieiro]

Are there any news about this feature?

[janpio]

What feature? This is a bug report about Introspection getting things wrong for @default of scalar lists - which is not possible. If you mean that feature, it is being tracked at #8330

[BrenoMazieiro]

Thanks @janpio! "that" one it is! =)