UpdateQuery  t_lwu_merges (children 3)
 Identifier t_lwu_merges
 Function equals (children 1)
  ExpressionList (children 2)
   Function modulo (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_3
   Literal UInt64_0
 ExpressionList (children 1)
  Assignment s (children 1)
   Function concat (children 1)
    ExpressionList (children 2)
     Identifier s
     Literal \'_foo\'
