Function isNestedSelectObject

packages/db/src/query/live/utils.ts:239–246

* Check if a value is a nested select object (plain object, not an expression)

(obj: any)

 * Check if a value is a nested select object (plain object, not an expression)
 */
function isNestedSelectObject(obj: any): boolean {
  if (obj === null || typeof obj !== `object`) return false
  if (obj instanceof IncludesSubquery) return false
  if (isExpressionLike(obj)) return false
  // Ref proxies from spread operations
  if (obj.__refProxy) return false
  return true
}

/**
 * Builds a query IR from a config object that contains either a query builder