fix: ts support for all optional keys in data model (#5283)

* fix: improve ts support when data model has only optional keys

* fix: improve ts inference by removing `object extends T` from DeepKeys

* prettier

---------

Co-authored-by: Jakub Różbicki <[email protected]>
Co-authored-by: Kevin Van Cott <[email protected]>

packages/table-core/src/utils.ts

@@ -47,17 +47,15 @@ export type DeepKeys<T, TDepth extends any[] = []> = TDepth['length'] extends 5
  ? never
  : unknown extends T
  ? string
- : object extends T
- ? string
- : T extends readonly any[] & IsTuple<T>
- ? AllowedIndexes<T> | DeepKeysPrefix<T, AllowedIndexes<T>, TDepth>
- : T extends any[]
- ? DeepKeys<T[number], [...TDepth, any]>
- : T extends Date
- ? never
- : T extends object
- ? (keyof T & string) | DeepKeysPrefix<T, keyof T, TDepth>
- : never
+ : T extends readonly any[] & IsTuple<T>
+ ? AllowedIndexes<T> | DeepKeysPrefix<T, AllowedIndexes<T>, TDepth>
+ : T extends any[]
+ ? DeepKeys<T[number], [...TDepth, any]>
+ : T extends Date
+ ? never
+ : T extends object
+ ? (keyof T & string) | DeepKeysPrefix<T, keyof T, TDepth>
+ : never
 
 type DeepKeysPrefix<
  T,