SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function toFixedString (children 1)
     ExpressionList (children 2)
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Function toFixedString (children 1)
         ExpressionList (children 2)
          Function toFixedString (children 1)
           ExpressionList (children 2)
            Function toFixedString (children 1)
             ExpressionList (children 2)
              Function toFixedString (children 1)
               ExpressionList (children 2)
                Literal \'%W\'
                Literal UInt64_2
              Literal UInt64_2
            Literal UInt64_2
          Function toLowCardinality (children 1)
           ExpressionList (children 1)
            Function toLowCardinality (children 1)
             ExpressionList (children 1)
              Function toNullable (children 1)
               ExpressionList (children 1)
                Literal UInt64_2
        Literal UInt64_2
      Literal UInt64_2
    Function toFixedString (children 1)
     ExpressionList (children 2)
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'2018-01-02 22:33:44\'
        Literal UInt64_19
      Literal UInt64_19
    Function hasSubsequence (children 1)
     ExpressionList (children 2)
      Function toNullable (children 1)
       ExpressionList (children 1)
        Function materialize (children 1)
         ExpressionList (children 1)
          Function toLowCardinality (children 1)
           ExpressionList (children 1)
            Literal \'garbage\'
      Literal \'gr\'
   ExpressionList (children 4)
    Literal \'2018-01-02 22:33:44\'
    Function toFixedString (children 1)
     ExpressionList (children 2)
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Literal \'2018-01-02 22:33:44\'
        Literal UInt64_19
      Literal UInt64_19
    Literal \'gr\'
    Literal \'2018-01-02 22:33:44\'
   Set
