groq-builder: consistent null/undefined

[danteissaias]

Is there an existing issue for this?

• [X] I have searched the existing issues

Code of Conduct

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Question

groq-builder converts potentially undefined fields to potentially null in top level projections. However it doesn't change any types deeper into the query.

// Schema type
type Product = {
  _id: string;
  _type: "product";
  name?: string;
};

// Query
export const productsQuery = q.star
  .filter(...)
  .project((q) => ({
    products: q.field("products[]").deref(),
  }));

type ResultType = {
  products: Product[] | null;
}

Is this inconsistency between null and undefined intentional?