SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayShingles (children 1)
     ExpressionList (children 2)
      Function array (children 1)
       ExpressionList (children 2)
        Function toLowCardinality (children 1)
         ExpressionList (children 1)
          Literal UInt64_2
        Function toLowCardinality (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
      Literal UInt64_1
