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Posted to derby-dev@db.apache.org by "Rick Hillegas (JIRA)" <ji...@apache.org> on 2013/06/12 21:30:20 UTC

[jira] [Created] (DERBY-6259) Collapse the level 2 optimizer into its parent module.

Rick Hillegas created DERBY-6259:
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             Summary: Collapse the level 2 optimizer into its parent module.
                 Key: DERBY-6259
                 URL: https://issues.apache.org/jira/browse/DERBY-6259
             Project: Derby
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 10.11.0.0
            Reporter: Rick Hillegas


Right now there are 2 optimizer implementations, only one of which is ever loaded. The other implementation was disabled by the following comment in modules.properties:

# use level1 optimizer for small configurations
#
# can't do this in the codeline because with 2 implementations, it is entirely
# by chance which get picked.  So we may be running with different modules
# depending on which jdk
#
# to be resolve by Siuling and Dan
#
#derby.module.optimizerSmall=org.apache.derby.impl.sql.compile.OptimizerFactoryImpl
#cloudscape.config.optimizerSmall=cloud,cloudtarget

Since we have deprecated support for the small CDC configuration, I don't think that we need further resolution by Siuling and Dan. Collapsing the two optimizers together should slightly reduce our static footprint.

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