SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function if (children 1)
     ExpressionList (children 3)
      Function greater (children 1)
       ExpressionList (children 2)
        Identifier number
        Literal UInt64_10
      Function parseDateTime (children 1)
       ExpressionList (children 2)
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal \'\'
        Literal \'%d-%m-%Y\'
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'2020-01-01\'
        Literal \'DateTime\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
