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From "Andreas Korneliussen (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1068) change of store contract: online compress operations should not share any locks with user transactions
Date Tue, 28 Feb 2006 14:40:43 GMT
change of store contract: online compress operations should not share any locks with user transactions
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         Key: DERBY-1068
         URL: http://issues.apache.org/jira/browse/DERBY-1068
     Project: Derby
        Type: Improvement
  Components: Store  
    Reporter: Andreas Korneliussen
    Priority: Minor


Propose to add the following to the store contract:
* truncate and compress requires exclusive table locking
* the truncate, purge and compress operations do not share any locks with user transactions


Currently the store implementation allows users to share locks in truncate and possibly purge.

This request is driven by:
http://www.nabble.com/conflict-detection-strategies-t1120376.html#a2938142

and:

http://www.nabble.com/RowLocation-contract-from-storage-engine-t1142235.html#a2994156

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