SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Function plus (alias d) (children 1)
     ExpressionList (children 2)
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2016-12-21\'
      Identifier number
    Function toWeek (alias week8) (children 1)
     ExpressionList (children 2)
      Identifier d
      Literal UInt64_8
    Function toWeek (alias week9) (children 1)
     ExpressionList (children 2)
      Identifier d
      Literal UInt64_9
    Function toYearWeek (alias yearWeek8) (children 1)
     ExpressionList (children 2)
      Identifier d
      Literal UInt64_8
    Function toYearWeek (alias yearWeek9) (children 1)
     ExpressionList (children 2)
      Identifier d
      Literal UInt64_9
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_21