AlterQuery  test (children 2)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier id
     Literal UInt64_90
   ExpressionList (children 1)
    Assignment json (children 1)
     Literal \'{"a" : 42}\'
 Identifier test
