SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function parseDateTimeBestEffortOrNull (alias a) (children 1)
     ExpressionList (children 1)
      Literal \'Dec 15, 2021\'
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier a
