Function referencesParent

packages/db/src/query/builder/index.ts:1107–1115

* Checks whether a WHERE clause references any parent alias.

(where: Where, parentAliases: Array<string>)

 * Checks whether a WHERE clause references any parent alias.
 */
function referencesParent(where: Where, parentAliases: Array<string>): boolean {
  const expr =
    typeof where === `object` && `expression` in where
      ? where.expression
      : where
  return collectRefsFromExpression(expr).some(
    (ref) => ref.path[0] != null && parentAliases.includes(ref.path[0]),
  )
}

/**
 * Builds an IncludesSubquery IR node from a child query builder.