USER_OPBINDINGS

All binding functions or methods on operators defined by the user

Columns
   ___________________________
 
   OWNER
      Owner of the operator
   OPERATOR_NAME
      Name of the operator
   BINDING#
      Binding# of the operator
   FUNCTION_NAME
      Name of the binding function or method as specified by the user
   RETURN_SCHEMA
      Name of the schema of the return type - not null only for ADTs
   RETURN_TYPE
      Name of the return type
   IMPLEMENTATION_TYPE_SCHEMA
      Schema of the implementation type of the indextype
   IMPLEMENTATION_TYPE
      Implementation type of the indextype
   PROPERTY
      Property of the operator binding

Related:

Simon Sheppard
SS64.com