SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function materialize (children 1)
     ExpressionList (children 1)
      Function toLowCardinality (children 1)
       ExpressionList (children 1)
        Literal \'a\\0aa\'
    Function countIf (alias res) (children 1)
     ExpressionList (children 2)
      Function toLowCardinality (children 1)
       ExpressionList (children 1)
        Literal \'aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0aaaaaaa\\0\'
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier sym
        Literal \'Red\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Function CAST (alias sym) (children 1)
            ExpressionList (children 2)
             Function CAST (children 1)
              ExpressionList (children 2)
               Function modulo (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_5
               Literal \'Enum8(\\\'Red\\\' = 0, \\\'Blue\\\' = 1, \\\'Yellow\\\' = 2, \\\'Black\\\' = 3, \\\'White\\\' = 4)\'
             Literal \'LowCardinality(String)\'
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function numbers (children 1)
              ExpressionList (children 1)
               Literal UInt64_3