SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function materialize (alias lc) (children 1)
     ExpressionList (children 1)
      Function toLowCardinality (children 1)
       ExpressionList (children 1)
        Literal \'\'
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier lc
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier lc
     Function defaultValueOfArgumentType (children 1)
      ExpressionList (children 1)
       Identifier lc
