AlterQuery  t_lightweight_mut_5 (children 2)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Literal UInt64_1
   ExpressionList (children 1)
    Assignment v (children 1)
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 2)
         ExpressionList (children 1)
          Function groupArray (children 1)
           ExpressionList (children 1)
            Identifier number
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            Function numbers (children 1)
             ExpressionList (children 1)
              Literal UInt64_10000
 Identifier t_lightweight_mut_5
