Change OData service field type from guid to string, and query still expects a guid

[matt]

See original question here: https://answers.sap.com/questions/13749752/odata-filter-with-edmguid-guid-created-from-cl-sys.html

To get round this issue, since I don't really need it in guid format, I've changed the type to string. And I'm getting the same error

Invalid parametertype used at function 'eq' (Position: 11)

I've set sap-ds-debug=true in the uri, and under the URI tab I see:

$filter information
SessionID eq ''
$filter error position
SessionID eq ''
          ^
Error: Invalid parametertype used at function 'eq' (Position: 11)
$filter tree
{
  nodeType: "property"
  name: "SessionID"
  type: "Edm.Guid"
}
$filter token
{
  -token: [
  -{
     kind: "literal"
     position: 1
     type: null
     value: "sessionid"
     value_lower: "SessionID"
   }
-{
   kind: "literal"
   position: 11
   type: null
   value: "eq"
   value_lower: "eq"
   }
-{
   kind: "typed_literal"
   position: 14
   type: "Edm.String"
   value: null
   value_lower: "''"
   }
]
}<br>

The stack trace shows that it's still expecting SessionID to be Edm.Guid. I deleted the entity types and entity set, recreated and generated and I'm still get the error. There's no navigation properties on the entity. It is set to be addressable and requires a filter.

I've checked the _MPC class, method define (which isn't overridden in the _MPC_EXT class), and checked the Define_entity and that looks all correct.

lo_property = lo_entity_type->create_property( iv_property_name = 'SessionID' iv_abap_fieldname = 'SESSION_ID' ). "#EC NOTEXT
lo_property->set_label_from_text_element( iv_text_element_symbol = '045' iv_text_element_container = gc_incl_name ).  "#EC NOTEXT
lo_property->set_is_key( ).
lo_property->set_type_edm_string( ).
lo_property->set_creatable( abap_false ).
lo_property->set_updatable( abap_false ).
lo_property->set_sortable( abap_false ).
lo_property->set_nullable( abap_false ).
lo_property->set_filterable( abap_true ).

It looks like something isn't being properly regenerated. Does anyone have any idea of how I can proceed?

[matt]

Answer here: https://answers.sap.com/questions/10882622/service-doesn%27t-update-after-data-model-updating.html

I ran tx /IWFND/CACHE_CLEANUP - Cleanup of GW Model Cache and that fixed the problem.