AlterQuery  test (children 2)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function less (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_4
   ExpressionList (children 1)
    Assignment a (children 1)
     Literal UInt64_0
 Identifier test
