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From mvarvil <mvar...@us.ibm.com>
Subject Logging indexes used by queries
Date Mon, 25 Mar 2013 16:45:34 GMT
What classes and methods could you point me to such that I could log the
index ultimately used by the optimizer?  

My objective is to identify useless and extraneous indexes in the database.  
I would like to capture a list of indexes used by the database while it is
in use by an application over a period of time.   Comparing the list against
ALL the indexes created in the system should provide a starting point for
identifying extraneous indexes. 

Alternatively, perhaps one might recommend enabling a logger class that
outputs this information already.   

Enabling logQueryPlan is my least favorite idea, because of its verbosity.  
I'm open to other ideas too. 


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