SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 8)
    Function toDate (alias x) (children 1)
     ExpressionList (children 1)
      Literal \'2018-09-17\'
    Function toDateTime (alias x_t) (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toISOWeek (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toISOWeek (children 1)
     ExpressionList (children 1)
      Identifier x_t
    Function toISOYear (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toISOYear (children 1)
     ExpressionList (children 1)
      Identifier x_t
    Function toStartOfISOYear (children 1)
     ExpressionList (children 1)
      Identifier x
    Function toStartOfISOYear (children 1)
     ExpressionList (children 1)
      Identifier x_t
