Explain EXPLAIN SYNTAX (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectIntersectExceptQuery (children 2)
    SelectWithUnionQuery (children 1)
     ExpressionList (children 1)
      SelectIntersectExceptQuery (children 2)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_2
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectIntersectExceptQuery (children 2)
          SelectWithUnionQuery (children 1)
           ExpressionList (children 1)
            SelectQuery (children 1)
             ExpressionList (children 1)
              Literal UInt64_2
          SelectQuery (children 1)
           ExpressionList (children 1)
            Literal UInt64_1
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1
    SelectQuery (children 1)
     ExpressionList (children 1)
      Literal UInt64_4
