Two weeks ago we saw A Christmas Story: The Musical. When the Parker family walks into to the Chinese restaurant on Christmas the father waves to the side and says to Mrs. Parker “there is the Swartz (or Schwartz) family.”
Schwartz was one of the characters in the film — Ralphie’s friend. Interestingly, Scott Schwartz played Ralphie’s friend Flick.
But Ralphie had no reaction like he would have if it had been his friend and his family. And his friend did not appear in the musical, so it had to have just been a joke about Jews going to Chinese restaurants on Christmas.