How to extend TREX index?

Hi All,
does anyone know is it possible to extend TREX index with a new column?
I want to do that to search TREX for documents that have specific date.
1.I'd like to add a new column with type dats.
2.Then fill this column with data by select to database (usr02 table) - is it possible to extend query of a
search engine service that replicates the business objects from the database into the TREX index?
3.And finally extend the search query from e-Recruiting to TREX index that the index returns only documents for which a value in my new column is set as required.
Thanks for any help.
Lukasz

Hi,
thanks for response.
I finally added a new column to search index for TREX, this column is standard LAST_CHANGED_BY.
Having this column in index I'm able to find out what is the name of the user, who changed the document indexed in trex. When I have the user, I also have form USR02 last login date for the user.
Now the dificult is how to add to search query for TREX a username that refers to my LAST_CHANGED_BY in index.
I've found a method (ADD_FILTER_ATTR) in search manager (CL_HRKWF_SEARCH_MANAGER) interface that ads attributes to query. I've added there a few usernames, but searching result is 0.
So now, I'm trying to find out how to properly add attribute - username to search query for TREX.
Regards

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It seems that you have not the actual TREX version and there is some database incompatibilities.
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SAP NetWeaver Know-How Network Webinar:
Understanding TREX Indexing and Search Options
Wednesday 25 August 2004
11 a.m. EDT
On Wednesday 25 August, Larry Brambrut, an EP RIG Consultant, hosts the webinar titled Understanding TREX Indexing and Search Options as part of the ongoing SAP NetWeaver Know-How Network Webinar Series.
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SDN invites you to post your questions to the presenter prior to the webinar and continue the online discussion afterward.
How to Participate
(Please go to the SDN webinar schedule page to find more information)
Dial-in Information:
Date: Wednesday 25 August 2004
Time: 11 a.m. EDT
Within the U.S., call: +1.888.428.4473
Outside the U.S., call: +1.651.291.0618
Password: NetWeaver04
WebEx Information:
Topic: SAP NetWeaver Know-How Network
Date: Wednesday 25 August 2004
Time: 11 a.m. EDT
Meeting Number: 742391500
Meeting Password: netweaver04 (lowercase)
WebEx Link: sap.webex.com
Replay Information:
A recorded replay of this call will be available for approximately three months after the webinar. Access this recording by dialing the appropriate number and using the replay access code 720155.
Toll-free: +1.800.475.6701
International: +1.320.365.3844

About the SAP NetWeaver Know-How Webinar Series
The SAP NetWeaver Know-How Webinar Series is driven by the SAP NetWeaver Regional Implementation Group (RIG), part of the SAP Development organization. The mission of the SAP NetWeaver RIG is to enable customers, employees, and partners to successfully implement the SAP NetWeaver solution. This SAP RIG has expertise in BI, EP, XI, and WebAS. They contribute their implementation expertise to the SDN implementation forums as well as to the SAP NetWeaver Know-How Webinar Series.
Disclaimer
SDN is not responsible for any changes to the webinar schedule. The webinar schedule may be changed or cancelled without prior notice.

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