OPTIMIZER_SECURE_VIEW_MERGING

HI DBA'S,

DOES SOMEBODY KNOW WHAT 10GR2 INIT PARAMETER
"OPTIMIZER_SECURE_VIEW_MERGING" 
DOES IN DETAIL? ORACLE DOCUMENTATION SAYS "ALLOWS YOU
TO ENABLE OR DISABLE 
VIEW MERGING GLOBALLY FOR THE DATABASE" WHAT I DO NOT
CONSIDER AS VERY 
INFORMATIVE. 

I AM CONCERNED ABOUT THIS SENTENCE: "TO TAKE ADVANTAGE
OF QUERY REWRITE FOR A 
PARTICULAR QUERY, YOU MUST DISABLE THE
OPTIMIZER_SECURE_VIEW_MERGING 
PARAMETER."
DOES THAT MEAN I HAVE TO SET
OPTIMIZER_SECURE_VIEW_MERGING=FALSE TO USE QUERY 
REWRITING AT ALL?

THANKS IN ADVANCE AND BEST REGARDS
-- 
FREUNDLICHE GRüßE

I.A.
MARTIN KLIER
SYSTEMADMINISTRATION/DATENBANKEN
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