Option "D", "Release Descriptor", from the File Maintenance menu removes a descriptor by freeing the specified field's inverted list in the Associator. Field names listed in the field definition table (FDT) with an option of "DE" are descriptors.
Note:
You can view the FDT of the existing file by selecting option
             "R", Database
            Report, from the main menu.
      
 To release a descriptor
To release a descriptor
Select option "D" (Release Descriptor).
Specify the number of the existing file.
Specify the name of the existing descriptor to be released.
Press ENTER.
Confirm the release on the resulting screen:
| 09:37:28         *****  A D A B A S   BASIC  SERVICES  *****       2006-07-20
   DBID 1955                 -  Release Descriptor  -                 PFLD002
      Descriptor Name .. AA
      File Number ...... 1
      File Name ........ EMPLOYEES
      Password .........
      In Parallel ...... NO
      Enter 'RELEASE' to confirm .. _______
  PF1----- PF2------ PF3------ PF4------ PF6----- PF7----- PF8----- PF12-----
  Help               Exit                Confirm                    Menu | 
This function corresponds to the Adabas utility function ADADBS RELEASE. The equivalent direct command is
RELEASE DESCRIPTOR file-number descriptor