Function deepCopyJoinFrom

packages/db/src/query/optimizer.ts:877–881

(
  from: CollectionRefClass | QueryRefClass,
)

}

function deepCopyJoinFrom(
  from: CollectionRefClass | QueryRefClass,
): CollectionRefClass | QueryRefClass {
  return deepCopyFrom(from) as CollectionRefClass | QueryRefClass
}

function optimizeNestedFrom(from: From): From {
  if (from.type === `queryRef`) {