UpdateQuery  lwu_on_fly (children 3)
 Identifier lwu_on_fly
 Function equals (children 1)
  ExpressionList (children 2)
   Function modulo (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_3
   Literal UInt64_1
 ExpressionList (children 1)
  Assignment u (children 1)
   Literal UInt64_0
