[ 
http://issues.apache.org/jira/browse/DERBY-573?page=comments#action_12331607 ] 

Daniel John Debrunner commented on DERBY-573:
---------------------------------------------

Thinking more about this DERBY-HINTS was a bad name since you are providing 
overrides, not hints. The generic  DERBY-PROPERTIES seems a good choice, that 
could support hints being added in the future by the name of the property 
containing the name 'hint'.

> Provider support for optimizer overrides in Derby.
> --------------------------------------------------
>
>          Key: DERBY-573
>          URL: http://issues.apache.org/jira/browse/DERBY-573
>      Project: Derby
>         Type: New Feature
>   Components: SQL
>     Versions: 10.2.0.0
>     Reporter: Mamta A. Satoor
>     Assignee: Mamta A. Satoor
>  Attachments: optimizeroverrides.html
>
> Derby's query optimizer usually makes the best choice of join order and 
> access path. The default join strategy ususally works the best too. However, 
> there are some cases in which user may want to override the optimizer or the 
> default values. Providing support for optimizer overrides will allow users to 
> hand-tune the optimizer for queries. 

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