SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayEnumerateUniqRanked (children 1)
     ExpressionList (children 2)
      Function arrayEnumerateUniqRanked (children 1)
       ExpressionList (children 1)
        Literal Array_[Array_[UInt64_1, UInt64_2, UInt64_3], Array_[UInt64_2, UInt64_2, UInt64_1], Array_[UInt64_3]]
      Function or (children 1)
       ExpressionList (children 2)
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal UInt64_1 (alias x)
        Function toLowCardinality (children 1)
         ExpressionList (children 1)
          Literal Int64_-9223372036854775808