AlterQuery  02577_keepermap_delete_update (children 2)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier key
     Literal UInt64_2
   ExpressionList (children 1)
    Assignment value (children 1)
     Literal \'Another\'
 Identifier 02577_keepermap_delete_update
