11i : Stanadard GLXACSDW.rdf Query ---No data in 11i when ap_accounting_events_all.SOURCE_TABLE =

Hi there,

Below is a standard query from 11i which pulls data from AP_ACCOUNTING_EVENTS_ALL when source table co9lumn =AP_PAYMENT_HISTORY.

In our system we are not able to find even a single record IN  AP_ACCOUNTING_EVENTS_ALL when source table column =AP_PAYMENT_HISTORY.

Can some one please explain the functionality of below standard query and if it possible to have data pulled from below query ??

select
   L1.displayed_field                                   ACCT_LINE_TYPE_NAME,
   to_number(null)                                      TRX_LINE_NUMBER,
   AEL.currency_code                                    CURRENCY_CODE,
   to_char(C.CHECK_NUMBER)                              TRX_NUMBER_DISPLAYED ,
   AEL.entered_dr                                       ENTERED_DR,