What is WRI$_ADV_SQLW_COLVOL and how is it populated?

Not finding anything online. I was looking for a dictionary view that might
help me see how volatile a particular column was. sys.col_usage$ can show me
when it is used in predicates, and dba_tab_modifications can show me how
often a table is updated, but I am looking for something in between. Came
across this object, but no data. I was hoping that
statistics_level=allwould show me some data, but so for my testing has
not born any fruit.

If there is a better source to go against, please let me know. I thought
about logminer, but I rather go with a less intrusive method if at all
possible.

TIA

SQL > desc WRI$_ADV_SQLW_COLVOL
Name
Null?    Type
-----------------------------------------------------------------------------
-------- ----------------------------------------------------
WORKLOAD_ID
NOT NULL NUMBER
TABLE_OWNER#
NUMBER
TABLE#
NOT NULL NUMBER
COL#
NOT NULL NUMBER
UPD_FREQ
NUMBER
UPD_ROWS
NUMBER

SQL > select count(*) from WRI$_ADV_SQLW_COLVOL;

 COUNT(*)
----------
        0

SQL > select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - 64bi
PL/SQL Release 10.2.0.2.0 - Production
CORE    10.2.0.2.0      Production
TNS for Solaris: Version 10.2.0.2.0 - Production
NLSRTL Version 10.2.0.2.0 - Production


--
Charles Schultz

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